56215355 has 8 divisors (see below), whose sum is σ = 77095392. Its totient is φ = 38547648.

The previous prime is 56215349. The next prime is 56215361. The reversal of 56215355 is 55351265.

It is an interprime number because it is at equal distance from previous prime (56215349) and next prime (56215361).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56215355 - 2²² = 52021051 is a prime.

It is a super-2 number, since 2×56215355² = 6320332275552050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803042 + ... + 803111.

It is an arithmetic number, because the mean of its divisors is an integer number (9636924).

Almost surely, 2^56215355 is an apocalyptic number.

56215355 is a deficient number, since it is larger than the sum of its proper divisors (20880037).

56215355 is a wasteful number, since it uses less digits than its factorization.

56215355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606165.

The product of its digits is 22500, while the sum is 32.

The square root of 56215355 is about 7497.6899775864. The cubic root of 56215355 is about 383.0760369591.

The spelling of 56215355 in words is "fifty-six million, two hundred fifteen thousand, three hundred fifty-five".