2557917432 has 48 divisors (see below), whose sum is σ = 7917365040. Its totient is φ = 730833408.

The previous prime is 2557917409. The next prime is 2557917463. The reversal of 2557917432 is 2347197552.

It is a happy number.

2557917432 is a `hidden beast` number, since 2 + 5 + 579 + 1 + 74 + 3 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2537113 + ... + 2538120.

It is an arithmetic number, because the mean of its divisors is an integer number (164945105).

Almost surely, 2^2557917432 is an apocalyptic number.

It is an amenable number.

2557917432 is an abundant number, since it is smaller than the sum of its proper divisors (5359447608).

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

2557917432 is a wasteful number, since it uses less digits than its factorization.

2557917432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075252 (or 5075245 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 2557917432 is about 50575.8581934108. The cubic root of 2557917432 is about 1367.6097044986.

The spelling of 2557917432 in words is "two billion, five hundred fifty-seven million, nine hundred seventeen thousand, four hundred thirty-two".