25125487587 has 12 divisors (see below), whose sum is σ = 36631553400. Its totient is φ = 16593779328.

The previous prime is 25125487571. The next prime is 25125487589. The reversal of 25125487587 is 78578452152.

It is a happy number.

25125487587 is a `hidden beast` number, since 2 + 5 + 1 + 2 + 54 + 8 + 7 + 587 = 666.

It is not a de Polignac number, because 25125487587 - 2⁴ = 25125487571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25125487589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13044462 + ... + 13046387.

It is an arithmetic number, because the mean of its divisors is an integer number (3052629450).

Almost surely, 2^25125487587 is an apocalyptic number.

25125487587 is a deficient number, since it is larger than the sum of its proper divisors (11506065813).

25125487587 is a wasteful number, since it uses less digits than its factorization.

25125487587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26090962 (or 26090959 counting only the distinct ones).

The product of its digits is 6272000, while the sum is 54.

The spelling of 25125487587 in words is "twenty-five billion, one hundred twenty-five million, four hundred eighty-seven thousand, five hundred eighty-seven".