56306631 has 8 divisors (see below), whose sum is σ = 75133440. Its totient is φ = 37508792.

The previous prime is 56306623. The next prime is 56306641. The reversal of 56306631 is 13660365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56306631 - 2³ = 56306623 is a prime.

It is a super-2 number, since 2×56306631² = 6340873389140322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56306641) 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, 2205 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (9391680).

Almost surely, 2^56306631 is an apocalyptic number.

56306631 is a deficient number, since it is larger than the sum of its proper divisors (18826809).

56306631 is a wasteful number, since it uses less digits than its factorization.

56306631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14485.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 56306631 is about 7503.7744502350. The cubic root of 56306631 is about 383.2832563864.

Adding to 56306631 its reverse (13660365), we get a palindrome (69966996).

The spelling of 56306631 in words is "fifty-six million, three hundred six thousand, six hundred thirty-one".