190812528225 has 120 divisors (see below), whose sum is σ = 385883194752. Its totient is φ = 92443075200.

The previous prime is 190812528197. The next prime is 190812528271. The reversal of 190812528225 is 522825218091.

190812528225 is a `hidden beast` number, since 1 + 90 + 8 + 12 + 528 + 2 + 25 = 666.

It is not a de Polignac number, because 190812528225 - 2⁶ = 190812528161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 38600104 + ... + 38605046.

Almost surely, 2^190812528225 is an apocalyptic number.

190812528225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190812528225 is an abundant number, since it is smaller than the sum of its proper divisors (195070666527).

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

190812528225 is a wasteful number, since it uses less digits than its factorization.

190812528225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6709 (or 6695 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 190812528225 in words is "one hundred ninety billion, eight hundred twelve million, five hundred twenty-eight thousand, two hundred twenty-five".