655571572 has 6 divisors (see below), whose sum is σ = 1147250258. Its totient is φ = 327785784.

The previous prime is 655571551. The next prime is 655571603. The reversal of 655571572 is 275175556.

It is a happy number.

655571572 is digitally balanced in base 2, 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 only one way, i.e., 638876176 + 16695396 = 25276^2 + 4086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81946443 + ... + 81946450.

Almost surely, 2^655571572 is an apocalyptic number.

It is an amenable number.

655571572 is a deficient number, since it is larger than the sum of its proper divisors (491678686).

655571572 is a wasteful number, since it uses less digits than its factorization.

655571572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163892897 (or 163892895 counting only the distinct ones).

The product of its digits is 367500, while the sum is 43.

The square root of 655571572 is about 25604.1319321706. The cubic root of 655571572 is about 868.7070997086.

The spelling of 655571572 in words is "six hundred fifty-five million, five hundred seventy-one thousand, five hundred seventy-two".