215052542 has 16 divisors (see below), whose sum is σ = 330426432. Its totient is φ = 104924160.

The previous prime is 215052521. The next prime is 215052557. The reversal of 215052542 is 245250512.

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, 29942 + ... + 36422.

It is an arithmetic number, because the mean of its divisors is an integer number (20651652).

Almost surely, 2^215052542 is an apocalyptic number.

215052542 is a deficient number, since it is larger than the sum of its proper divisors (115373890).

215052542 is a wasteful number, since it uses less digits than its factorization.

215052542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 215052542 is about 14664.6698564952. The cubic root of 215052542 is about 599.1214382507.

The spelling of 215052542 in words is "two hundred fifteen million, fifty-two thousand, five hundred forty-two".