56201731 has 8 divisors (see below), whose sum is σ = 57928640. Its totient is φ = 54493992.

The previous prime is 56201723. The next prime is 56201737. The reversal of 56201731 is 13710265.

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 56201731 - 2³ = 56201723 is a prime.

It is a super-2 number, since 2×56201731² = 6317269134792722, 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 = 56201696 and 56201705.

It is not an unprimeable number, because it can be changed into a prime (56201737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276 + ... + 10678.

It is an arithmetic number, because the mean of its divisors is an integer number (7241080).

Almost surely, 2^56201731 is an apocalyptic number.

56201731 is a deficient number, since it is larger than the sum of its proper divisors (1726909).

56201731 is a wasteful number, since it uses less digits than its factorization.

56201731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9585.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 56201731 is about 7496.7813760306. The cubic root of 56201731 is about 383.0450878255.

Adding to 56201731 its reverse (13710265), we get a palindrome (69911996).

The spelling of 56201731 in words is "fifty-six million, two hundred one thousand, seven hundred thirty-one".