25158908932 has 6 divisors (see below), whose sum is σ = 44028090638. Its totient is φ = 12579454464.

The previous prime is 25158908921. The next prime is 25158908939. The reversal of 25158908932 is 23980985152.

It can be written as a sum of positive squares in only one way, i.e., 16104625216 + 9054283716 = 126904^2 + 95154^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25158908932.

It is not an unprimeable number, because it can be changed into a prime (25158908939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3144863613 + ... + 3144863620.

Almost surely, 2^25158908932 is an apocalyptic number.

It is an amenable number.

25158908932 is a deficient number, since it is larger than the sum of its proper divisors (18869181706).

25158908932 is a wasteful number, since it uses less digits than its factorization.

25158908932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289727237 (or 6289727235 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 25158908932 in words is "twenty-five billion, one hundred fifty-eight million, nine hundred eight thousand, nine hundred thirty-two".