188628025 has 12 divisors (see below), whose sum is σ = 241444864. Its totient is φ = 146034000.

The previous prime is 188628023. The next prime is 188628047. The reversal of 188628025 is 520826881.

It is a happy number.

It is not a de Polignac number, because 188628025 - 2¹ = 188628023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188628023) 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, 120921 + ... + 122470.

Almost surely, 2^188628025 is an apocalyptic number.

It is an amenable number.

188628025 is a deficient number, since it is larger than the sum of its proper divisors (52816839).

188628025 is a wasteful number, since it uses less digits than its factorization.

188628025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243432 (or 243427 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 188628025 is about 13734.1918218729. The cubic root of 188628025 is about 573.5026194340.

The spelling of 188628025 in words is "one hundred eighty-eight million, six hundred twenty-eight thousand, twenty-five".