25551163374 has 32 divisors (see below), whose sum is σ = 55868465664. Its totient is φ = 7726044480.

The previous prime is 25551163373. The next prime is 25551163397. The reversal of 25551163374 is 47336115552.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 387519 + ... + 448634.

It is an arithmetic number, because the mean of its divisors is an integer number (1745889552).

Almost surely, 2^25551163374 is an apocalyptic number.

25551163374 is an abundant number, since it is smaller than the sum of its proper divisors (30317302290).

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

25551163374 is a wasteful number, since it uses less digits than its factorization.

25551163374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836632.

The product of its digits is 378000, while the sum is 42.

The spelling of 25551163374 in words is "twenty-five billion, five hundred fifty-one million, one hundred sixty-three thousand, three hundred seventy-four".