215354056 has 16 divisors (see below), whose sum is σ = 425041200. Its totient is φ = 102009744.

The previous prime is 215354039. The next prime is 215354059. The reversal of 215354056 is 650453512.

It is a super-2 number, since 2×215354056² = 92754738871302272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215354059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708250 + ... + 708553.

It is an arithmetic number, because the mean of its divisors is an integer number (26565075).

Almost surely, 2^215354056 is an apocalyptic number.

It is an amenable number.

215354056 is a deficient number, since it is larger than the sum of its proper divisors (209687144).

215354056 is a wasteful number, since it uses less digits than its factorization.

215354056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416828 (or 1416824 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 215354056 is about 14674.9465416403. The cubic root of 215354056 is about 599.4013065126.

The spelling of 215354056 in words is "two hundred fifteen million, three hundred fifty-four thousand, fifty-six".