2557403604 has 60 divisors (see below), whose sum is σ = 7640644704. Its totient is φ = 730686096.

The previous prime is 2557403587. The next prime is 2557403617. The reversal of 2557403604 is 4063047552.

2557403604 is a `hidden beast` number, since 2 + 5 + 5 + 7 + 40 + 3 + 604 = 666.

2557403604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 561534 + ... + 566069.

Almost surely, 2^2557403604 is an apocalyptic number.

It is an amenable number.

2557403604 is an abundant number, since it is smaller than the sum of its proper divisors (5083241100).

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

2557403604 is a wasteful number, since it uses less digits than its factorization.

2557403604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127626 (or 1127615 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 2557403604 is about 50570.7781628877. The cubic root of 2557403604 is about 1367.5181243706.

The spelling of 2557403604 in words is "two billion, five hundred fifty-seven million, four hundred three thousand, six hundred four".