190255944500 has 24 divisors (see below), whose sum is σ = 415518983880. Its totient is φ = 76102377600.

The previous prime is 190255944457. The next prime is 190255944509. The reversal of 190255944500 is 5449552091.

It can be written as a sum of positive squares in 4 ways, for example, as 39162035236 + 151093909264 = 197894^2 + 388708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190255944509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190255445 + ... + 190256444.

It is an arithmetic number, because the mean of its divisors is an integer number (17313290995).

Almost surely, 2^190255944500 is an apocalyptic number.

190255944500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190255944500 is an abundant number, since it is smaller than the sum of its proper divisors (225263039380).

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

190255944500 is a wasteful number, since it uses less digits than its factorization.

190255944500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380511908 (or 380511896 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 190255944500 in words is "one hundred ninety billion, two hundred fifty-five million, nine hundred forty-four thousand, five hundred".