2099930625 has 135 divisors (see below), whose sum is σ = 4193503743. Its totient is φ = 1011816000.

The previous prime is 2099930611. The next prime is 2099930633. The reversal of 2099930625 is 5260399902.

The square root of 2099930625 is 45825.

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 2074164849 + 25765776 = 45543^2 + 5076^2 .

It is not a de Polignac number, because 2099930625 - 2²³ = 2091542017 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 44679352 + ... + 44679398.

Almost surely, 2^2099930625 is an apocalyptic number.

2099930625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2099930625 is the 45825-th square number.

2099930625 is the 22913-rd centered octagonal number.

It is an amenable number.

2099930625 is a deficient number, since it is larger than the sum of its proper divisors (2093573118).

2099930625 is an equidigital number, since it uses as much as digits as its factorization.

2099930625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The cubic root of 2099930625 is about 1280.5650632164.

The spelling of 2099930625 in words is "two billion, ninety-nine million, nine hundred thirty thousand, six hundred twenty-five".