56606215 has 4 divisors (see below), whose sum is σ = 67927464. Its totient is φ = 45284968.

The previous prime is 56606201. The next prime is 56606219. The reversal of 56606215 is 51260665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51260665 = 5 ⋅10252133.

It is a cyclic number.

It is not a de Polignac number, because 56606215 - 2⁵ = 56606183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56606219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660617 + ... + 5660626.

It is an arithmetic number, because the mean of its divisors is an integer number (16981866).

Almost surely, 2^56606215 is an apocalyptic number.

56606215 is a deficient number, since it is larger than the sum of its proper divisors (11321249).

56606215 is a wasteful number, since it uses less digits than its factorization.

56606215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321248.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 56606215 is about 7523.7101884642. The cubic root of 56606215 is about 383.9618175830.

The spelling of 56606215 in words is "fifty-six million, six hundred six thousand, two hundred fifteen".