2525356857 has 4 divisors (see below), whose sum is σ = 3367142480. Its totient is φ = 1683571236.

The previous prime is 2525356807. The next prime is 2525356877. The reversal of 2525356857 is 7586535252.

2525356857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2525356857 - 2¹² = 2525352761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525356807) 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, 420892807 + ... + 420892812.

It is an arithmetic number, because the mean of its divisors is an integer number (841785620).

Almost surely, 2^2525356857 is an apocalyptic number.

It is an amenable number.

2525356857 is a deficient number, since it is larger than the sum of its proper divisors (841785623).

2525356857 is an equidigital number, since it uses as much as digits as its factorization.

2525356857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841785622.

The product of its digits is 2520000, while the sum is 48.

The square root of 2525356857 is about 50252.9288400189. The cubic root of 2525356857 is about 1361.7819880653.

The spelling of 2525356857 in words is "two billion, five hundred twenty-five million, three hundred fifty-six thousand, eight hundred fifty-seven".