655020556 has 6 divisors (see below), whose sum is σ = 1146285980. Its totient is φ = 327510276.

The previous prime is 655020547. The next prime is 655020563.

It is a happy number.

655020556 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81877566 + ... + 81877573.

Almost surely, 2^655020556 is an apocalyptic number.

It is an amenable number.

655020556 is a deficient number, since it is larger than the sum of its proper divisors (491265424).

655020556 is a wasteful number, since it uses less digits than its factorization.

655020556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163755143 (or 163755141 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 655020556 is about 25593.3693756801. The cubic root of 655020556 is about 868.4636451395.

The spelling of 655020556 in words is "six hundred fifty-five million, twenty thousand, five hundred fifty-six".