56163651 has 4 divisors (see below), whose sum is σ = 74884872. Its totient is φ = 37442432.

The previous prime is 56163649. The next prime is 56163683. The reversal of 56163651 is 15636165.

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 56163651 - 2¹ = 56163649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56163641) 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, 9360606 + ... + 9360611.

It is an arithmetic number, because the mean of its divisors is an integer number (18721218).

Almost surely, 2^56163651 is an apocalyptic number.

56163651 is a deficient number, since it is larger than the sum of its proper divisors (18721221).

56163651 is a wasteful number, since it uses less digits than its factorization.

56163651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721220.

The product of its digits is 16200, while the sum is 33.

The square root of 56163651 is about 7494.2411890731. The cubic root of 56163651 is about 382.9585563711.

The spelling of 56163651 in words is "fifty-six million, one hundred sixty-three thousand, six hundred fifty-one".