205472715 has 16 divisors (see below), whose sum is σ = 375721728. Its totient is φ = 93930336.

The previous prime is 205472713. The next prime is 205472741. The reversal of 205472715 is 517274502.

It is not a de Polignac number, because 205472715 - 2¹ = 205472713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205472711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978337 + ... + 978546.

It is an arithmetic number, because the mean of its divisors is an integer number (23482608).

Almost surely, 2^205472715 is an apocalyptic number.

205472715 is a deficient number, since it is larger than the sum of its proper divisors (170249013).

205472715 is a wasteful number, since it uses less digits than its factorization.

205472715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956898.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 205472715 is about 14334.3194815799. The cubic root of 205472715 is about 590.0897258924.

The spelling of 205472715 in words is "two hundred five million, four hundred seventy-two thousand, seven hundred fifteen".