25126252587 has 48 divisors (see below), whose sum is σ = 38811252480. Its totient is φ = 15629241600.

The previous prime is 25126252577. The next prime is 25126252609. The reversal of 25126252587 is 78525262152.

25126252587 is a `hidden beast` number, since 2 + 5 + 1 + 2 + 62 + 5 + 2 + 587 = 666.

It is not a de Polignac number, because 25126252587 - 2⁶ = 25126252523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25126252537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7094037 + ... + 7097577.

It is an arithmetic number, because the mean of its divisors is an integer number (808567760).

Almost surely, 2^25126252587 is an apocalyptic number.

25126252587 is a deficient number, since it is larger than the sum of its proper divisors (13684999893).

25126252587 is a wasteful number, since it uses less digits than its factorization.

25126252587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484 (or 4481 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The spelling of 25126252587 in words is "twenty-five billion, one hundred twenty-six million, two hundred fifty-two thousand, five hundred eighty-seven".