25087197952 has 18 divisors (see below), whose sum is σ = 50076399548. Its totient is φ = 12543598848.

The previous prime is 25087197929. The next prime is 25087197983. The reversal of 25087197952 is 25979178052.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25087197893 and 25087197902.

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 as a sum of consecutive naturals, namely, 48998178 + ... + 48998689.

Almost surely, 2^25087197952 is an apocalyptic number.

It is an amenable number.

25087197952 is a deficient number, since it is larger than the sum of its proper divisors (24989201596).

25087197952 is an frugal number, since it uses more digits than its factorization.

25087197952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97996883 (or 97996869 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 25087197952 in words is "twenty-five billion, eighty-seven million, one hundred ninety-seven thousand, nine hundred fifty-two".