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25036525 = 523532837
BaseRepresentation
bin101111110000…
…0011011101101
31202002222122201
41133200123231
522402132100
62252341501
7422543533
oct137403355
952088581
1025036525
1113150348
128474891
135257a17
14347a153
1522e836a
hex17e06ed

25036525 has 12 divisors (see below), whose sum is σ = 31144212. Its totient is φ = 19965440.

The previous prime is 25036523. The next prime is 25036577. The reversal of 25036525 is 52563052.

It can be written as a sum of positive squares in 6 ways, for example, as 5517801 + 19518724 = 2349^2 + 4418^2 .

It is not a de Polignac number, because 25036525 - 21 = 25036523 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25036493 and 25036502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25036523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7407 + ... + 10243.

It is an arithmetic number, because the mean of its divisors is an integer number (2595351).

Almost surely, 225036525 is an apocalyptic number.

25036525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25036525 is a deficient number, since it is larger than the sum of its proper divisors (6107687).

25036525 is a wasteful number, since it uses less digits than its factorization.

25036525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200 (or 3195 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 25036525 is about 5003.6511668980. The cubic root of 25036525 is about 292.5441041927.

Adding to 25036525 its reverse (52563052), we get a palindrome (77599577).

The spelling of 25036525 in words is "twenty-five million, thirty-six thousand, five hundred twenty-five".

Divisors: 1 5 25 353 1765 2837 8825 14185 70925 1001461 5007305 25036525