25087131345 has 16 divisors (see below), whose sum is σ = 40184992512. Its totient is φ = 13364609280.

The previous prime is 25087131313. The next prime is 25087131359. The reversal of 25087131345 is 54313178052.

It is a happy number.

It is not a de Polignac number, because 25087131345 - 2⁵ = 25087131313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 935977 + ... + 962406.

It is an arithmetic number, because the mean of its divisors is an integer number (2511562032).

Almost surely, 2^25087131345 is an apocalyptic number.

It is an amenable number.

25087131345 is a deficient number, since it is larger than the sum of its proper divisors (15097861167).

25087131345 is a wasteful number, since it uses less digits than its factorization.

25087131345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899272.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 25087131345 in words is "twenty-five billion, eighty-seven million, one hundred thirty-one thousand, three hundred forty-five".