655235252 has 18 divisors (see below), whose sum is σ = 1333872162. Its totient is φ = 280815024.

The previous prime is 655235239. The next prime is 655235263. The reversal of 655235252 is 252532556.

It can be written as a sum of positive squares in only one way, i.e., 644956816 + 10278436 = 25396^2 + 3206^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1671323 + ... + 1671714.

It is an arithmetic number, because the mean of its divisors is an integer number (74104009).

Almost surely, 2^655235252 is an apocalyptic number.

It is an amenable number.

655235252 is an abundant number, since it is smaller than the sum of its proper divisors (678636910).

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

655235252 is a wasteful number, since it uses less digits than its factorization.

655235252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343055 (or 3343046 counting only the distinct ones).

The product of its digits is 90000, while the sum is 35.

The square root of 655235252 is about 25597.5633996676. The cubic root of 655235252 is about 868.5585201788.

The spelling of 655235252 in words is "six hundred fifty-five million, two hundred thirty-five thousand, two hundred fifty-two".