655769725 has 12 divisors (see below), whose sum is σ = 875705236. Its totient is φ = 484260480.

The previous prime is 655769717. The next prime is 655769729. The reversal of 655769725 is 527967556.

655769725 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 13704804 + 642064921 = 3702^2 + 25339^2 .

It is not a de Polignac number, because 655769725 - 2³ = 655769717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655769729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008552 + ... + 1009201.

Almost surely, 2^655769725 is an apocalyptic number.

655769725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

655769725 is a deficient number, since it is larger than the sum of its proper divisors (219935511).

655769725 is a wasteful number, since it uses less digits than its factorization.

655769725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017776 (or 2017771 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 52.

The square root of 655769725 is about 25608.0011910340. The cubic root of 655769725 is about 868.7946159996.

The spelling of 655769725 in words is "six hundred fifty-five million, seven hundred sixty-nine thousand, seven hundred twenty-five".