655072258 has 16 divisors (see below), whose sum is σ = 989484984. Its totient is φ = 325252480.

The previous prime is 655072219. The next prime is 655072261. The reversal of 655072258 is 852270556.

It can be written as a sum of positive squares in 4 ways, for example, as 547887649 + 107184609 = 23407^2 + 10353^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 655072258.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176316 + ... + 179992.

Almost surely, 2^655072258 is an apocalyptic number.

655072258 is a deficient number, since it is larger than the sum of its proper divisors (334412726).

655072258 is a wasteful number, since it uses less digits than its factorization.

655072258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 655072258 is about 25594.3794220528. The cubic root of 655072258 is about 868.4864943593.

The spelling of 655072258 in words is "six hundred fifty-five million, seventy-two thousand, two hundred fifty-eight".