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25052345 = 56537673
BaseRepresentation
bin101111110010…
…0010010111001
31202010210100122
41133210102321
522403133340
62252543025
7422640623
oct137442271
952123318
1025052345
111316121a
128481a75
135261c96
143481c13
1522ecdb5
hex17e44b9

25052345 has 8 divisors (see below), whose sum is σ = 30112776. Its totient is φ = 20008576.

The previous prime is 25052341. The next prime is 25052347. The reversal of 25052345 is 54325052.

It can be written as a sum of positive squares in 4 ways, for example, as 1510441 + 23541904 = 1229^2 + 4852^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25052345 - 22 = 25052341 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25052341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (3764097).

Almost surely, 225052345 is an apocalyptic number.

It is an amenable number.

25052345 is a deficient number, since it is larger than the sum of its proper divisors (5060431).

25052345 is an equidigital number, since it uses as much as digits as its factorization.

25052345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 25052345 is about 5005.2317628657. The cubic root of 25052345 is about 292.6057084993.

Adding to 25052345 its reverse (54325052), we get a palindrome (79377397).

The spelling of 25052345 in words is "twenty-five million, fifty-two thousand, three hundred forty-five".

Divisors: 1 5 653 3265 7673 38365 5010469 25052345