1055766231 has 56 divisors (see below), whose sum is σ = 1723127616. Its totient is φ = 642686400.

The previous prime is 1055766221. The next prime is 1055766247. The reversal of 1055766231 is 1326675501.

1055766231 is a `hidden beast` number, since 10 + 557 + 6 + 62 + 31 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1055766231 is a prime.

It is a super-2 number, since 2×1055766231² = 2229284669039890722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055766211) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 956626 + ... + 957728.

It is an arithmetic number, because the mean of its divisors is an integer number (30770136).

Almost surely, 2^1055766231 is an apocalyptic number.

1055766231 is a deficient number, since it is larger than the sum of its proper divisors (667361385).

1055766231 is a wasteful number, since it uses less digits than its factorization.

1055766231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1055766231 is about 32492.5565476156. The cubic root of 1055766231 is about 1018.2535251806.

The spelling of 1055766231 in words is "one billion, fifty-five million, seven hundred sixty-six thousand, two hundred thirty-one".