56620669 has 4 divisors (see below), whose sum is σ = 64709344. Its totient is φ = 48531996.

The previous prime is 56620667. The next prime is 56620699. The reversal of 56620669 is 96602665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56620669 - 2¹ = 56620667 is a prime.

It is a super-2 number, since 2×56620669² = 6411800316015122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4044327 + ... + 4044340.

It is an arithmetic number, because the mean of its divisors is an integer number (16177336).

Almost surely, 2^56620669 is an apocalyptic number.

It is an amenable number.

56620669 is a deficient number, since it is larger than the sum of its proper divisors (8088675).

56620669 is an equidigital number, since it uses as much as digits as its factorization.

56620669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088674.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 56620669 is about 7524.6706904688. The cubic root of 56620669 is about 383.9944954542.

The spelling of 56620669 in words is "fifty-six million, six hundred twenty thousand, six hundred sixty-nine".