25087563775 has 12 divisors (see below), whose sum is σ = 31237667824. Its totient is φ = 19986768000.

The previous prime is 25087563769. The next prime is 25087563797. The reversal of 25087563775 is 57736578052.

It is not a de Polignac number, because 25087563775 - 2¹¹ = 25087561727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2075931 + ... + 2087980.

Almost surely, 2^25087563775 is an apocalyptic number.

25087563775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25087563775 is a deficient number, since it is larger than the sum of its proper divisors (6150104049).

25087563775 is a wasteful number, since it uses less digits than its factorization.

25087563775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164162 (or 4164157 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 25087563775 in words is "twenty-five billion, eighty-seven million, five hundred sixty-three thousand, seven hundred seventy-five".