56213065 has 16 divisors (see below), whose sum is σ = 68654160. Its totient is φ = 44179200.

The previous prime is 56213057. The next prime is 56213089. The reversal of 56213065 is 56031265.

It can be written as a sum of positive squares in 8 ways, for example, as 456976 + 55756089 = 676^2 + 7467^2 .

It is not a de Polignac number, because 56213065 - 2³ = 56213057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78931 + ... + 79639.

It is an arithmetic number, because the mean of its divisors is an integer number (4290885).

Almost surely, 2^56213065 is an apocalyptic number.

It is an amenable number.

56213065 is a deficient number, since it is larger than the sum of its proper divisors (12441095).

56213065 is a wasteful number, since it uses less digits than its factorization.

56213065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56213065 is about 7497.5372623282. The cubic root of 56213065 is about 383.0708352010.

The spelling of 56213065 in words is "fifty-six million, two hundred thirteen thousand, sixty-five".