655325765 has 4 divisors (see below), whose sum is σ = 786390924. Its totient is φ = 524260608.

The previous prime is 655325717. The next prime is 655325813. The reversal of 655325765 is 567523556.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (655325717) and next prime (655325813).

It can be written as a sum of positive squares in 2 ways, for example, as 320911396 + 334414369 = 17914^2 + 18287^2 .

It is a cyclic number.

It is not a de Polignac number, because 655325765 - 2²⁰ = 654277189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65532572 + ... + 65532581.

It is an arithmetic number, because the mean of its divisors is an integer number (196597731).

Almost surely, 2^655325765 is an apocalyptic number.

It is an amenable number.

655325765 is a deficient number, since it is larger than the sum of its proper divisors (131065159).

655325765 is a wasteful number, since it uses less digits than its factorization.

655325765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131065158.

The product of its digits is 945000, while the sum is 44.

The square root of 655325765 is about 25599.3313389237. The cubic root of 655325765 is about 868.5985120328.

The spelling of 655325765 in words is "six hundred fifty-five million, three hundred twenty-five thousand, seven hundred sixty-five".