56213005 has 4 divisors (see below), whose sum is σ = 67455612. Its totient is φ = 44970400.

The previous prime is 56212979. The next prime is 56213021. The reversal of 56213005 is 50031265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27846729 + 28366276 = 5277^2 + 5326^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56213005 is a prime.

It is a super-2 number, since 2×56213005² = 6319803862260050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5621296 + ... + 5621305.

It is an arithmetic number, because the mean of its divisors is an integer number (16863903).

Almost surely, 2^56213005 is an apocalyptic number.

It is an amenable number.

56213005 is a deficient number, since it is larger than the sum of its proper divisors (11242607).

56213005 is a wasteful number, since it uses less digits than its factorization.

56213005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11242606.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 56213005 is about 7497.5332610133. The cubic root of 56213005 is about 383.0706989085.

The spelling of 56213005 in words is "fifty-six million, two hundred thirteen thousand, five".