56072613 has 8 divisors (see below), whose sum is σ = 79161408. Its totient is φ = 35182784.

The previous prime is 56072609. The next prime is 56072623. The reversal of 56072613 is 31627065.

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 56072613 - 2² = 56072609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56072623) 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, 549681 + ... + 549782.

It is an arithmetic number, because the mean of its divisors is an integer number (9895176).

Almost surely, 2^56072613 is an apocalyptic number.

It is an amenable number.

56072613 is a deficient number, since it is larger than the sum of its proper divisors (23088795).

56072613 is a wasteful number, since it uses less digits than its factorization.

56072613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099483.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 56072613 is about 7488.1648619672. The cubic root of 56072613 is about 382.7515266476.

Adding to 56072613 its reverse (31627065), we get a palindrome (87699678).

The spelling of 56072613 in words is "fifty-six million, seventy-two thousand, six hundred thirteen".