25605504332 has 24 divisors (see below), whose sum is σ = 45389836800. Its totient is φ = 12637072656.

The previous prime is 25605504293. The next prime is 25605504359. The reversal of 25605504332 is 23340550652.

It is a junction number, because it is equal to n+sod(n) for n = 25605504292 and 25605504301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343969 + ... + 1362887.

It is an arithmetic number, because the mean of its divisors is an integer number (1891243200).

Almost surely, 2^25605504332 is an apocalyptic number.

It is an amenable number.

25605504332 is a deficient number, since it is larger than the sum of its proper divisors (19784332468).

25605504332 is a wasteful number, since it uses less digits than its factorization.

25605504332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23285 (or 23283 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 25605504332 in words is "twenty-five billion, six hundred five million, five hundred four thousand, three hundred thirty-two".