189624425 has 6 divisors (see below), whose sum is σ = 235134318. Its totient is φ = 151699520.

The previous prime is 189624353. The next prime is 189624431. The reversal of 189624425 is 524426981.

189624425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 946729 + 188677696 = 973^2 + 13736^2 .

It is not a de Polignac number, because 189624425 - 2²² = 185430121 is a prime.

It is a Duffinian 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, 3792464 + ... + 3792513.

It is an arithmetic number, because the mean of its divisors is an integer number (39189053).

Almost surely, 2^189624425 is an apocalyptic number.

It is an amenable number.

189624425 is a deficient number, since it is larger than the sum of its proper divisors (45509893).

189624425 is an equidigital number, since it uses as much as digits as its factorization.

189624425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584987 (or 7584982 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 189624425 is about 13770.4184758489. The cubic root of 189624425 is about 574.5106611838.

The spelling of 189624425 in words is "one hundred eighty-nine million, six hundred twenty-four thousand, four hundred twenty-five".