1057561712 has 20 divisors (see below), whose sum is σ = 2138114640. Its totient is φ = 505790208.

The previous prime is 1057561693. The next prime is 1057561723. The reversal of 1057561712 is 2171657501.

It is a super-2 number, since 2×1057561712² = 2236873549376741888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436537 + ... + 1437272.

It is an arithmetic number, because the mean of its divisors is an integer number (106905732).

Almost surely, 2^1057561712 is an apocalyptic number.

It is an amenable number.

1057561712 is an abundant number, since it is smaller than the sum of its proper divisors (1080552928).

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

1057561712 is a wasteful number, since it uses less digits than its factorization.

1057561712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873840 (or 2873834 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 35.

The square root of 1057561712 is about 32520.1739232741. The cubic root of 1057561712 is about 1018.8304267015.

The spelling of 1057561712 in words is "one billion, fifty-seven million, five hundred sixty-one thousand, seven hundred twelve".