1090075725 has 30 divisors (see below), whose sum is σ = 2019200810. Its totient is φ = 581372640.

The previous prime is 1090075711. The next prime is 1090075741. The reversal of 1090075725 is 5275700901.

It can be written as a sum of positive squares in 3 ways, for example, as 130439241 + 959636484 = 11421^2 + 30978^2 .

It is not a de Polignac number, because 1090075725 - 2⁹ = 1090075213 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1090075725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 267130 + ... + 271179.

Almost surely, 2^1090075725 is an apocalyptic number.

1090075725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1090075725 is a deficient number, since it is larger than the sum of its proper divisors (929125085).

1090075725 is an equidigital number, since it uses as much as digits as its factorization.

1090075725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538331 (or 538317 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 1090075725 is about 33016.2948405783. The cubic root of 1090075725 is about 1029.1662983784.

The spelling of 1090075725 in words is "one billion, ninety million, seventy-five thousand, seven hundred twenty-five".