213925550 has 12 divisors (see below), whose sum is σ = 397901616. Its totient is φ = 85570200.

The previous prime is 213925549. The next prime is 213925567. The reversal of 213925550 is 55529312.

213925550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2139206 + ... + 2139305.

It is an arithmetic number, because the mean of its divisors is an integer number (33158468).

Almost surely, 2^213925550 is an apocalyptic number.

213925550 is a deficient number, since it is larger than the sum of its proper divisors (183976066).

213925550 is a wasteful number, since it uses less digits than its factorization.

213925550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278523 (or 4278518 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 213925550 is about 14626.1939683569. The cubic root of 213925550 is about 598.0730309050.

The spelling of 213925550 in words is "two hundred thirteen million, nine hundred twenty-five thousand, five hundred fifty".