56531073 has 8 divisors (see below), whose sum is σ = 77806336. Its totient is φ = 36471600.

The previous prime is 56531071. The next prime is 56531081. The reversal of 56531073 is 37013565.

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

It is not a de Polignac number, because 56531073 - 2¹ = 56531071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56531073.

It is not an unprimeable number, because it can be changed into a prime (56531071) 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, 303838 + ... + 304023.

It is an arithmetic number, because the mean of its divisors is an integer number (9725792).

Almost surely, 2^56531073 is an apocalyptic number.

It is an amenable number.

56531073 is a deficient number, since it is larger than the sum of its proper divisors (21275263).

56531073 is a wasteful number, since it uses less digits than its factorization.

56531073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607895.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 56531073 is about 7518.7148502919. The cubic root of 56531073 is about 383.7918454653.

The spelling of 56531073 in words is "fifty-six million, five hundred thirty-one thousand, seventy-three".