25451537882 has 16 divisors (see below), whose sum is σ = 38862888480. Its totient is φ = 12497669712.

The previous prime is 25451537861. The next prime is 25451537893. The reversal of 25451537882 is 28873515452.

It is a self number, because there is not a number n which added to its sum of digits gives 25451537882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13073 + ... + 225995.

It is an arithmetic number, because the mean of its divisors is an integer number (2428930530).

Almost surely, 2^25451537882 is an apocalyptic number.

25451537882 is a deficient number, since it is larger than the sum of its proper divisors (13411350598).

25451537882 is a wasteful number, since it uses less digits than its factorization.

25451537882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213997.

The product of its digits is 2688000, while the sum is 50.

The spelling of 25451537882 in words is "twenty-five billion, four hundred fifty-one million, five hundred thirty-seven thousand, eight hundred eighty-two".