215054125 has 64 divisors (see below), whose sum is σ = 322672896. Its totient is φ = 141024000.

The previous prime is 215054087. The next prime is 215054153. The reversal of 215054125 is 521450512.

It is not a de Polignac number, because 215054125 - 2⁹ = 215053613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 215054125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 947262 + ... + 947488.

It is an arithmetic number, because the mean of its divisors is an integer number (5041764).

Almost surely, 2^215054125 is an apocalyptic number.

215054125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215054125 is a deficient number, since it is larger than the sum of its proper divisors (107618771).

215054125 is a wasteful number, since it uses less digits than its factorization.

215054125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 215054125 is about 14664.7238296533. The cubic root of 215054125 is about 599.1229082898.

The spelling of 215054125 in words is "two hundred fifteen million, fifty-four thousand, one hundred twenty-five".