1056205057 has 8 divisors (see below), whose sum is σ = 1120196160. Its totient is φ = 993719760.

The previous prime is 1056205043. The next prime is 1056205063. The reversal of 1056205057 is 7505026501.

1056205057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056205057 is a prime.

It is a super-2 number, since 2×1056205057² = 2231138244864746498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056205067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375007 + ... + 377812.

It is an arithmetic number, because the mean of its divisors is an integer number (140024520).

Almost surely, 2^1056205057 is an apocalyptic number.

It is an amenable number.

1056205057 is a deficient number, since it is larger than the sum of its proper divisors (63991103).

1056205057 is an equidigital number, since it uses as much as digits as its factorization.

1056205057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752903.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 1056205057 is about 32499.3085618756. The cubic root of 1056205057 is about 1018.3945836252.

The spelling of 1056205057 in words is "one billion, fifty-six million, two hundred five thousand, fifty-seven".