2257425684 has 36 divisors (see below), whose sum is σ = 5708238900. Its totient is φ = 752215680.

The previous prime is 2257425679. The next prime is 2257425691. The reversal of 2257425684 is 4865247522.

2257425684 is a `hidden beast` number, since 22 + 574 + 2 + 56 + 8 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 959264784 + 1298160900 = 30972^2 + 36030^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115074 + ... + 133254.

Almost surely, 2^2257425684 is an apocalyptic number.

It is an amenable number.

2257425684 is an abundant number, since it is smaller than the sum of its proper divisors (3450813216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2257425684 is a wasteful number, since it uses less digits than its factorization.

2257425684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21640 (or 21635 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The square root of 2257425684 is about 47512.3740093041. The cubic root of 2257425684 is about 1311.8106547161.

The spelling of 2257425684 in words is "two billion, two hundred fifty-seven million, four hundred twenty-five thousand, six hundred eighty-four".