56973331 has 2 divisors, whose sum is σ = 56973332. Its totient is φ = 56973330.

The previous prime is 56973289. The next prime is 56973347. The reversal of 56973331 is 13337965.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56973331 - 2²¹ = 54876179 is a prime.

It is a super-2 number, since 2×56973331² = 6491920890471122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56973391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28486665 + 28486666.

It is an arithmetic number, because the mean of its divisors is an integer number (28486666).

Almost surely, 2^56973331 is an apocalyptic number.

56973331 is a deficient number, since it is larger than the sum of its proper divisors (1).

56973331 is an equidigital number, since it uses as much as digits as its factorization.

56973331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 37.

The square root of 56973331 is about 7548.0680309600. The cubic root of 56973331 is about 384.7900829009.

The spelling of 56973331 in words is "fifty-six million, nine hundred seventy-three thousand, three hundred thirty-one".