215552045 has 8 divisors (see below), whose sum is σ = 259618560. Its totient is φ = 171804240.

The previous prime is 215552039. The next prime is 215552059. The reversal of 215552045 is 540255512.

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

It is not a de Polignac number, because 215552045 - 2²⁰ = 214503469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215551999 and 215552017.

It is a congruent 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, 78185 + ... + 80894.

It is an arithmetic number, because the mean of its divisors is an integer number (32452320).

Almost surely, 2^215552045 is an apocalyptic number.

It is an amenable number.

215552045 is a deficient number, since it is larger than the sum of its proper divisors (44066515).

215552045 is a wasteful number, since it uses less digits than its factorization.

215552045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159355.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 215552045 is about 14681.6908086228. The cubic root of 215552045 is about 599.5849397931.

The spelling of 215552045 in words is "two hundred fifteen million, five hundred fifty-two thousand, forty-five".