1090650625 has 15 divisors (see below), whose sum is σ = 1363909503. Its totient is φ = 871860000.

The previous prime is 1090650619. The next prime is 1090650629. The reversal of 1090650625 is 5260560901.

It is a happy number.

The square root of 1090650625 is 33025.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 307546369 + 783104256 = 17537^2 + 27984^2 .

It is not a de Polignac number, because 1090650625 - 2⁷ = 1090650497 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090650629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 824965 + ... + 826285.

Almost surely, 2^1090650625 is an apocalyptic number.

1090650625 is the 33025-th square number.

1090650625 is the 16513-rd centered octagonal number.

It is an amenable number.

1090650625 is a deficient number, since it is larger than the sum of its proper divisors (273258878).

1090650625 is an frugal number, since it uses more digits than its factorization.

1090650625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The cubic root of 1090650625 is about 1029.3471921481.

The spelling of 1090650625 in words is "one billion, ninety million, six hundred fifty thousand, six hundred twenty-five".