215564054 has 8 divisors (see below), whose sum is σ = 323421168. Its totient is φ = 107757000.

The previous prime is 215564033. The next prime is 215564059. The reversal of 215564054 is 450465512.

215564054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×215564054² = 92935722753829832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 215564054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215564059) 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, 1304 + ... + 20804.

It is an arithmetic number, because the mean of its divisors is an integer number (40427646).

Almost surely, 2^215564054 is an apocalyptic number.

215564054 is a deficient number, since it is larger than the sum of its proper divisors (107857114).

215564054 is a wasteful number, since it uses less digits than its factorization.

215564054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25030.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 215564054 is about 14682.0997817070. The cubic root of 215564054 is about 599.5960744309.

The spelling of 215564054 in words is "two hundred fifteen million, five hundred sixty-four thousand, fifty-four".