215172048 has 80 divisors (see below), whose sum is σ = 684150656. Its totient is φ = 56747520.

The previous prime is 215172011. The next prime is 215172049. The reversal of 215172048 is 840271512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215172049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20263 + ... + 28998.

Almost surely, 2^215172048 is an apocalyptic number.

215172048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

215172048 is an abundant number, since it is smaller than the sum of its proper divisors (468978608).

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

215172048 is a wasteful number, since it uses less digits than its factorization.

215172048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49292 (or 49286 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 215172048 is about 14668.7439135053. The cubic root of 215172048 is about 599.2323961705.

The spelling of 215172048 in words is "two hundred fifteen million, one hundred seventy-two thousand, forty-eight".