56415631 has 8 divisors (see below), whose sum is σ = 57892464. Its totient is φ = 54943680.

The previous prime is 56415581. The next prime is 56415649. The reversal of 56415631 is 13651465.

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 56415631 - 2⁹ = 56415119 is a prime.

It is a super-2 number, since 2×56415631² = 6365446842256322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56415593 and 56415602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56415661) 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, 38101 + ... + 39553.

It is an arithmetic number, because the mean of its divisors is an integer number (7236558).

Almost surely, 2^56415631 is an apocalyptic number.

56415631 is a deficient number, since it is larger than the sum of its proper divisors (1476833).

56415631 is a wasteful number, since it uses less digits than its factorization.

56415631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its digits is 10800, while the sum is 31.

The square root of 56415631 is about 7511.0339501296. The cubic root of 56415631 is about 383.5304205593.

The spelling of 56415631 in words is "fifty-six million, four hundred fifteen thousand, six hundred thirty-one".