56620711 has 8 divisors (see below), whose sum is σ = 64866464. Its totient is φ = 48414240.

The previous prime is 56620709. The next prime is 56620747. The reversal of 56620711 is 11702665.

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

It is not a de Polignac number, because 56620711 - 2¹ = 56620709 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 56620711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6660 + ... + 12553.

It is an arithmetic number, because the mean of its divisors is an integer number (8108308).

Almost surely, 2^56620711 is an apocalyptic number.

56620711 is a deficient number, since it is larger than the sum of its proper divisors (8245753).

56620711 is a wasteful number, since it uses less digits than its factorization.

56620711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19641.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 56620711 is about 7524.6734812881. The cubic root of 56620711 is about 383.9945904005.

The spelling of 56620711 in words is "fifty-six million, six hundred twenty thousand, seven hundred eleven".