1056644506 has 16 divisors (see below), whose sum is σ = 1627104384. Its totient is φ = 514393344.

The previous prime is 1056644467. The next prime is 1056644509. The reversal of 1056644506 is 6054466501.

It is a super-2 number, since 2×1056644506² = 2232995224119968072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056644509) 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, 10980 + ... + 47263.

It is an arithmetic number, because the mean of its divisors is an integer number (101694024).

Almost surely, 2^1056644506 is an apocalyptic number.

1056644506 is a deficient number, since it is larger than the sum of its proper divisors (570459878).

1056644506 is a wasteful number, since it uses less digits than its factorization.

1056644506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58485.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1056644506 is about 32506.0687564645. The cubic root of 1056644506 is about 1018.5358031814.

The spelling of 1056644506 in words is "one billion, fifty-six million, six hundred forty-four thousand, five hundred six".