56620605 has 8 divisors (see below), whose sum is σ = 90592992. Its totient is φ = 30197648.

The previous prime is 56620573. The next prime is 56620607. The reversal of 56620605 is 50602665.

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 56620605 - 2⁵ = 56620573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620607) 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, 1887339 + ... + 1887368.

It is an arithmetic number, because the mean of its divisors is an integer number (11324124).

Almost surely, 2^56620605 is an apocalyptic number.

It is an amenable number.

56620605 is a deficient number, since it is larger than the sum of its proper divisors (33972387).

56620605 is a wasteful number, since it uses less digits than its factorization.

56620605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774715.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56620605 is about 7524.6664377898. Note that the first 3 decimals coincide. The cubic root of 56620605 is about 383.9943507741.

The spelling of 56620605 in words is "fifty-six million, six hundred twenty thousand, six hundred five".