25152265503 has 32 divisors (see below), whose sum is σ = 38912486400. Its totient is φ = 16026851808.

The previous prime is 25152265447. The next prime is 25152265507. The reversal of 25152265503 is 30556225152.

25152265503 is a `hidden beast` number, since 2 + 51 + 52 + 2 + 6 + 550 + 3 = 666.

It is not a de Polignac number, because 25152265503 - 2¹⁰ = 25152264479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25152265507) 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, 834093 + ... + 863721.

It is an arithmetic number, because the mean of its divisors is an integer number (1216015200).

Almost surely, 2^25152265503 is an apocalyptic number.

25152265503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25152265503 is a deficient number, since it is larger than the sum of its proper divisors (13760220897).

25152265503 is a wasteful number, since it uses less digits than its factorization.

25152265503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028 (or 31022 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 25152265503 in words is "twenty-five billion, one hundred fifty-two million, two hundred sixty-five thousand, five hundred three".