655651252 has 24 divisors (see below), whose sum is σ = 1176222600. Its totient is φ = 319689216.

The previous prime is 655651207. The next prime is 655651261. The reversal of 655651252 is 252156556.

It can be written as a sum of positive squares in 4 ways, for example, as 86436 + 655564816 = 294^2 + 25604^2 .

It is a congruent number.

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, 13374 + ... + 38602.

It is an arithmetic number, because the mean of its divisors is an integer number (49009275).

Almost surely, 2^655651252 is an apocalyptic number.

It is an amenable number.

655651252 is a deficient number, since it is larger than the sum of its proper divisors (520571348).

655651252 is a wasteful number, since it uses less digits than its factorization.

655651252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25395 (or 25393 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The square root of 655651252 is about 25605.6878837496. The cubic root of 655651252 is about 868.7422933119.

The spelling of 655651252 in words is "six hundred fifty-five million, six hundred fifty-one thousand, two hundred fifty-two".