190488825 has 36 divisors (see below), whose sum is σ = 361263708. Its totient is φ = 95616000.

The previous prime is 190488821. The next prime is 190488847. The reversal of 190488825 is 528884091.

It is a happy number.

190488825 is a `hidden beast` number, since 1 + 90 + 488 + 82 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 710649 + 189778176 = 843^2 + 13776^2 .

It is not a de Polignac number, because 190488825 - 2² = 190488821 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 not an unprimeable number, because it can be changed into a prime (190488821) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21076 + ... + 28725.

It is an arithmetic number, because the mean of its divisors is an integer number (10035103).

Almost surely, 2^190488825 is an apocalyptic number.

190488825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190488825 is a deficient number, since it is larger than the sum of its proper divisors (170774883).

190488825 is a wasteful number, since it uses less digits than its factorization.

190488825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49834 (or 49826 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 190488825 is about 13801.7689083682. The cubic root of 190488825 is about 575.3823040447.

The spelling of 190488825 in words is "one hundred ninety million, four hundred eighty-eight thousand, eight hundred twenty-five".