1057785755 has 24 divisors (see below), whose sum is σ = 1429049328. Its totient is φ = 747147456.

The previous prime is 1057785739. The next prime is 1057785791. The reversal of 1057785755 is 5575877501.

It is not a de Polignac number, because 1057785755 - 2⁴ = 1057785739 is a prime.

It is a super-2 number, since 2×1057785755² = 2237821406961840050, which contains 22 as substring.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 19004 + ... + 49766.

It is an arithmetic number, because the mean of its divisors is an integer number (59543722).

Almost surely, 2^1057785755 is an apocalyptic number.

1057785755 is a deficient number, since it is larger than the sum of its proper divisors (371263573).

1057785755 is a wasteful number, since it uses less digits than its factorization.

1057785755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30827 (or 30804 counting only the distinct ones).

The product of its (nonzero) digits is 1715000, while the sum is 50.

The square root of 1057785755 is about 32523.6184180051. The cubic root of 1057785755 is about 1018.9023675649.

The spelling of 1057785755 in words is "one billion, fifty-seven million, seven hundred eighty-five thousand, seven hundred fifty-five".