25322851057 has 4 divisors (see below), whose sum is σ = 28940401216. Its totient is φ = 21705300900.

The previous prime is 25322851009. The next prime is 25322851063. The reversal of 25322851057 is 75015822352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25322851057 - 2²³ = 25314462449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25322851457) 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, 1808775069 + ... + 1808775082.

It is an arithmetic number, because the mean of its divisors is an integer number (7235100304).

Almost surely, 2^25322851057 is an apocalyptic number.

It is an amenable number.

25322851057 is a deficient number, since it is larger than the sum of its proper divisors (3617550159).

25322851057 is an equidigital number, since it uses as much as digits as its factorization.

25322851057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617550158.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 25322851057 in words is "twenty-five billion, three hundred twenty-two million, eight hundred fifty-one thousand, fifty-seven".