215049560 has 32 divisors (see below), whose sum is σ = 527850000. Its totient is φ = 78199680.

The previous prime is 215049547. The next prime is 215049589. The reversal of 215049560 is 65940512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243935 + ... + 244814.

Almost surely, 2^215049560 is an apocalyptic number.

215049560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215049560 is an abundant number, since it is smaller than the sum of its proper divisors (312800440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215049560 is a wasteful number, since it uses less digits than its factorization.

215049560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488771 (or 488767 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 215049560 is about 14664.5681832095. The cubic root of 215049560 is about 599.1186690230.

It can be divided in two parts, 215049 and 560, that multiplied together give a triangular number (120427440 = T₁₅₅₁₉).

The spelling of 215049560 in words is "two hundred fifteen million, forty-nine thousand, five hundred sixty".