23615425 has 12 divisors (see below), whose sum is σ = 30293820. Its totient is φ = 18240320.

The previous prime is 23615401. The next prime is 23615437. The reversal of 23615425 is 52451632.

It can be written as a sum of positive squares in 6 ways, for example, as 5022081 + 18593344 = 2241^2 + 4312^2 .

It is not a de Polignac number, because 23615425 - 2⁷ = 23615297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23615393 and 23615402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15562 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (2524485).

Almost surely, 2^23615425 is an apocalyptic number.

23615425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23615425 is a deficient number, since it is larger than the sum of its proper divisors (6678395).

23615425 is a wasteful number, since it uses less digits than its factorization.

23615425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32612 (or 32607 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 23615425 is about 4859.5704542686. The cubic root of 23615425 is about 286.9009074876.

The spelling of 23615425 in words is "twenty-three million, six hundred fifteen thousand, four hundred twenty-five".