25091702253 has 12 divisors (see below), whose sum is σ = 36251046780. Its totient is φ = 16724350656.

The previous prime is 25091702231. The next prime is 25091702267. The reversal of 25091702253 is 35220719052.

25091702253 is a `hidden beast` number, since 250 + 91 + 70 + 2 + 253 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17488211049 + 7603491204 = 132243^2 + 87198^2 .

It is not a de Polignac number, because 25091702253 - 2³⁰ = 24017960429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25091702353) 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, 241126 + ... + 329127.

It is an arithmetic number, because the mean of its divisors is an integer number (3020920565).

Almost surely, 2^25091702253 is an apocalyptic number.

It is an amenable number.

25091702253 is a deficient number, since it is larger than the sum of its proper divisors (11159344527).

25091702253 is a wasteful number, since it uses less digits than its factorization.

25091702253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575148 (or 575145 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 25091702253 in words is "twenty-five billion, ninety-one million, seven hundred two thousand, two hundred fifty-three".