23415525 has 36 divisors (see below), whose sum is σ = 47934432. Its totient is φ = 10703520.

The previous prime is 23415517. The next prime is 23415533. The reversal of 23415525 is 52551432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23415517) and next prime (23415533).

It is not a de Polignac number, because 23415525 - 2³ = 23415517 is a prime.

It is a super-2 number, since 2×23415525² = 1096573622051250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5859 + ... + 9008.

It is an arithmetic number, because the mean of its divisors is an integer number (1331512).

Almost surely, 2^23415525 is an apocalyptic number.

23415525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23415525 is an abundant number, since it is smaller than the sum of its proper divisors (24518907).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23415525 is a wasteful number, since it uses less digits than its factorization.

23415525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890 (or 14882 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 23415525 is about 4838.9590822821. The cubic root of 23415525 is about 286.0890923312.

Adding to 23415525 its reverse (52551432), we get a palindrome (75966957).

The spelling of 23415525 in words is "twenty-three million, four hundred fifteen thousand, five hundred twenty-five".