25001525 has 12 divisors (see below), whose sum is σ = 31396800. Its totient is φ = 19746480.

The previous prime is 25001507. The next prime is 25001527. The reversal of 25001525 is 52510052.

It is not a de Polignac number, because 25001525 - 2⁶ = 25001461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25001497 and 25001506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4355 + ... + 8304.

It is an arithmetic number, because the mean of its divisors is an integer number (2616400).

Almost surely, 2^25001525 is an apocalyptic number.

25001525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25001525 is a deficient number, since it is larger than the sum of its proper divisors (6395275).

25001525 is a wasteful number, since it uses less digits than its factorization.

25001525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12748 (or 12743 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 25001525 is about 5000.1524976744. The cubic root of 25001525 is about 292.4077192031.

Adding to 25001525 its reverse (52510052), we get a palindrome (77511577).

The spelling of 25001525 in words is "twenty-five million, one thousand, five hundred twenty-five".