655255572 has 12 divisors (see below), whose sum is σ = 1528929696. Its totient is φ = 218418520.

The previous prime is 655255553. The next prime is 655255577. The reversal of 655255572 is 275552556.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655255577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27302304 + ... + 27302327.

It is an arithmetic number, because the mean of its divisors is an integer number (127410808).

Almost surely, 2^655255572 is an apocalyptic number.

It is an amenable number.

655255572 is an abundant number, since it is smaller than the sum of its proper divisors (873674124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655255572 is a wasteful number, since it uses less digits than its factorization.

655255572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54604638 (or 54604636 counting only the distinct ones).

The product of its digits is 525000, while the sum is 42.

The square root of 655255572 is about 25597.9603093684. The cubic root of 655255572 is about 868.5674985961.

The spelling of 655255572 in words is "six hundred fifty-five million, two hundred fifty-five thousand, five hundred seventy-two".