56122615 has 4 divisors (see below), whose sum is σ = 67347144. Its totient is φ = 44898088.

The previous prime is 56122609. The next prime is 56122621. The reversal of 56122615 is 51622165.

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

It is an interprime number because it is at equal distance from previous prime (56122609) and next prime (56122621).

It is a cyclic number.

It is not a de Polignac number, because 56122615 - 2¹¹ = 56120567 is a prime.

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, 5612257 + ... + 5612266.

It is an arithmetic number, because the mean of its divisors is an integer number (16836786).

Almost surely, 2^56122615 is an apocalyptic number.

56122615 is a deficient number, since it is larger than the sum of its proper divisors (11224529).

56122615 is a wasteful number, since it uses less digits than its factorization.

56122615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11224528.

The product of its digits is 3600, while the sum is 28.

The square root of 56122615 is about 7491.5028532331. The cubic root of 56122615 is about 382.8652640251.

The spelling of 56122615 in words is "fifty-six million, one hundred twenty-two thousand, six hundred fifteen".