2292780725 has 12 divisors (see below), whose sum is σ = 2843688900. Its totient is φ = 1833811200.

The previous prime is 2292780671. The next prime is 2292780761. The reversal of 2292780725 is 5270872922.

It can be written as a sum of positive squares in 6 ways, for example, as 149646289 + 2143134436 = 12233^2 + 46294^2 .

It is not a de Polignac number, because 2292780725 - 2⁶ = 2292780661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154115 + ... + 168335.

It is an arithmetic number, because the mean of its divisors is an integer number (236974075).

Almost surely, 2^2292780725 is an apocalyptic number.

2292780725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2292780725 is a deficient number, since it is larger than the sum of its proper divisors (550908175).

2292780725 is a wasteful number, since it uses less digits than its factorization.

2292780725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20680 (or 20675 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 2292780725 is about 47882.9899337959. The cubic root of 2292780725 is about 1318.6235891798.

The spelling of 2292780725 in words is "two billion, two hundred ninety-two million, seven hundred eighty thousand, seven hundred twenty-five".