2257625394 has 24 divisors (see below), whose sum is σ = 5010828732. Its totient is φ = 734186880.

The previous prime is 2257625393. The next prime is 2257625399. The reversal of 2257625394 is 4935267522.

2257625394 is a `hidden beast` number, since 2 + 2 + 57 + 62 + 539 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2210222169 + 47403225 = 47013^2 + 6885^2 .

It is not an unprimeable number, because it can be changed into a prime (2257625393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1528819 + ... + 1530294.

Almost surely, 2^2257625394 is an apocalyptic number.

2257625394 is an abundant number, since it is smaller than the sum of its proper divisors (2753203338).

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

2257625394 is a wasteful number, since it uses less digits than its factorization.

2257625394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059162 (or 3059159 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 2257625394 is about 47514.4756258553. The cubic root of 2257625394 is about 1311.8493380095.

The spelling of 2257625394 in words is "two billion, two hundred fifty-seven million, six hundred twenty-five thousand, three hundred ninety-four".