25551163372 has 12 divisors (see below), whose sum is σ = 51102326800. Its totient is φ = 10950498576.

The previous prime is 25551163369. The next prime is 25551163373. The reversal of 25551163372 is 27336115552.

It is a happy number.

25551163372 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25551163373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456270747 + ... + 456270802.

Almost surely, 2^25551163372 is an apocalyptic number.

It is an amenable number.

25551163372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25551163372 is a wasteful number, since it uses less digits than its factorization.

25551163372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912541560 (or 912541558 counting only the distinct ones).

The product of its digits is 189000, while the sum is 40.

The spelling of 25551163372 in words is "twenty-five billion, five hundred fifty-one million, one hundred sixty-three thousand, three hundred seventy-two".