56620869 has 8 divisors (see below), whose sum is σ = 76200480. Its totient is φ = 37394256.

The previous prime is 56620807. The next prime is 56620891. The reversal of 56620869 is 96802665.

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

It is not a de Polignac number, because 56620869 - 2⁹ = 56620357 is a prime.

It is a super-2 number, since 2×56620869² = 6411845612630322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56620869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620769) 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, 87874 + ... + 88515.

It is an arithmetic number, because the mean of its divisors is an integer number (9525060).

Almost surely, 2^56620869 is an apocalyptic number.

It is an amenable number.

56620869 is a deficient number, since it is larger than the sum of its proper divisors (19579611).

56620869 is a wasteful number, since it uses less digits than its factorization.

56620869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176499.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 56620869 is about 7524.6839800752. The cubic root of 56620869 is about 383.9949475789.

The spelling of 56620869 in words is "fifty-six million, six hundred twenty thousand, eight hundred sixty-nine".