25238523964 has 6 divisors (see below), whose sum is σ = 44167416944. Its totient is φ = 12619261980.

The previous prime is 25238523943. The next prime is 25238523971. The reversal of 25238523964 is 46932583252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154815492 + ... + 3154815499.

Almost surely, 2^25238523964 is an apocalyptic number.

It is an amenable number.

25238523964 is a deficient number, since it is larger than the sum of its proper divisors (18928892980).

25238523964 is a wasteful number, since it uses less digits than its factorization.

25238523964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309630995 (or 6309630993 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 49.

The spelling of 25238523964 in words is "twenty-five billion, two hundred thirty-eight million, five hundred twenty-three thousand, nine hundred sixty-four".