56763131 has 4 divisors (see below), whose sum is σ = 56895264. Its totient is φ = 56631000.

The previous prime is 56763107. The next prime is 56763163. The reversal of 56763131 is 13136765.

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

It is a cyclic number.

It is not a de Polignac number, because 56763131 - 2⁶ = 56763067 is a prime.

It is a super-2 number, since 2×56763131² = 6444106081846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56763101) 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, 65420 + ... + 66281.

It is an arithmetic number, because the mean of its divisors is an integer number (14223816).

Almost surely, 2^56763131 is an apocalyptic number.

56763131 is a deficient number, since it is larger than the sum of its proper divisors (132133).

56763131 is a wasteful number, since it uses less digits than its factorization.

56763131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132132.

The product of its digits is 11340, while the sum is 32.

The square root of 56763131 is about 7534.1310713313. The cubic root of 56763131 is about 384.3162790505.

Adding to 56763131 its reverse (13136765), we get a palindrome (69899896).

The spelling of 56763131 in words is "fifty-six million, seven hundred sixty-three thousand, one hundred thirty-one".