56620100 has 18 divisors (see below), whose sum is σ = 122865834. Its totient is φ = 22648000.

The previous prime is 56620097. The next prime is 56620103. The reversal of 56620100 is 102665.

It is an interprime number because it is at equal distance from previous prime (56620097) and next prime (56620103).

It can be written as a sum of positive squares in 3 ways, for example, as 7311616 + 49308484 = 2704^2 + 7022^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (56620103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283001 + ... + 283200.

Almost surely, 2^56620100 is an apocalyptic number.

56620100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56620100 is an abundant number, since it is smaller than the sum of its proper divisors (66245734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56620100 is a wasteful number, since it uses less digits than its factorization.

56620100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566215 (or 566208 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 56620100 is about 7524.6328814102. The cubic root of 56620100 is about 383.9932091536.

Adding to 56620100 its reverse (102665), we get a palindrome (56722765).

The spelling of 56620100 in words is "fifty-six million, six hundred twenty thousand, one hundred".