25130634487 has 32 divisors (see below), whose sum is σ = 31299840000. Its totient is φ = 19687401216.

The previous prime is 25130634457. The next prime is 25130634511. The reversal of 25130634487 is 78443603152.

It is not a de Polignac number, because 25130634487 - 2⁷ = 25130634359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130634457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8055714 + ... + 8058832.

It is an arithmetic number, because the mean of its divisors is an integer number (978120000).

Almost surely, 2^25130634487 is an apocalyptic number.

25130634487 is a deficient number, since it is larger than the sum of its proper divisors (6169205513).

25130634487 is a wasteful number, since it uses less digits than its factorization.

25130634487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 25130634487 in words is "twenty-five billion, one hundred thirty million, six hundred thirty-four thousand, four hundred eighty-seven".