1056755477 has 4 divisors (see below), whose sum is σ = 1062119916. Its totient is φ = 1051391040.

The previous prime is 1056755461. The next prime is 1056755489. The reversal of 1056755477 is 7745576501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 879359716 + 177395761 = 29654^2 + 13319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056755477 - 2⁴ = 1056755461 is a prime.

It is a super-2 number, since 2×1056755477² = 2233464276338995058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056755407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2681924 + ... + 2682317.

It is an arithmetic number, because the mean of its divisors is an integer number (265529979).

Almost surely, 2^1056755477 is an apocalyptic number.

It is an amenable number.

1056755477 is a deficient number, since it is larger than the sum of its proper divisors (5364439).

1056755477 is an equidigital number, since it uses as much as digits as its factorization.

1056755477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364438.

The product of its (nonzero) digits is 1029000, while the sum is 47.

The square root of 1056755477 is about 32507.7756390683. The cubic root of 1056755477 is about 1018.5714581815.

The spelling of 1056755477 in words is "one billion, fifty-six million, seven hundred fifty-five thousand, four hundred seventy-seven".