25170211053 has 16 divisors (see below), whose sum is σ = 40157602240. Its totient is φ = 15489360432.

The previous prime is 25170211051. The next prime is 25170211061. The reversal of 25170211053 is 35011207152.

It is not a de Polignac number, because 25170211053 - 2¹ = 25170211051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25170211051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35854651 + ... + 35855352.

It is an arithmetic number, because the mean of its divisors is an integer number (2509850140).

Almost surely, 2^25170211053 is an apocalyptic number.

It is an amenable number.

25170211053 is a deficient number, since it is larger than the sum of its proper divisors (14987391187).

25170211053 is a wasteful number, since it uses less digits than its factorization.

25170211053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71710025 (or 71710019 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The spelling of 25170211053 in words is "twenty-five billion, one hundred seventy million, two hundred eleven thousand, fifty-three".