25500560053 has 4 divisors (see below), whose sum is σ = 26379889740. Its totient is φ = 24621230368.

The previous prime is 25500560051. The next prime is 25500560081. The reversal of 25500560053 is 35006500552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9525369604 + 15975190449 = 97598^2 + 126393^2 .

It is a cyclic number.

It is not a de Polignac number, because 25500560053 - 2¹ = 25500560051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25500559997 and 25500560024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500560051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439664800 + ... + 439664857.

It is an arithmetic number, because the mean of its divisors is an integer number (6594972435).

Almost surely, 2^25500560053 is an apocalyptic number.

It is an amenable number.

25500560053 is a deficient number, since it is larger than the sum of its proper divisors (879329687).

25500560053 is an equidigital number, since it uses as much as digits as its factorization.

25500560053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879329686.

The product of its (nonzero) digits is 22500, while the sum is 31.

The spelling of 25500560053 in words is "twenty-five billion, five hundred million, five hundred sixty thousand, fifty-three".