189056520 has 48 divisors (see below), whose sum is σ = 614434860. Its totient is φ = 50414976.

The previous prime is 189056503. The next prime is 189056521. The reversal of 189056520 is 25650981.

It is a happy number.

189056520 is a `hidden beast` number, since 1 + 8 + 90 + 565 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 182736324 + 6320196 = 13518^2 + 2514^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (189056521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262219 + ... + 262938.

Almost surely, 2^189056520 is an apocalyptic number.

189056520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189056520 is an abundant number, since it is smaller than the sum of its proper divisors (425378340).

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

189056520 is a wasteful number, since it uses less digits than its factorization.

189056520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525174 (or 525167 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 189056520 is about 13749.7825437350. The cubic root of 189056520 is about 573.9365548818.

It can be divided in two parts, 18905 and 6520, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 189056520 in words is "one hundred eighty-nine million, fifty-six thousand, five hundred twenty".