655499752 has 8 divisors (see below), whose sum is σ = 1229062050. Its totient is φ = 327749872.

The previous prime is 655499749. The next prime is 655499809. The reversal of 655499752 is 257994556.

It can be written as a sum of positive squares in only one way, i.e., 341288676 + 314211076 = 18474^2 + 17726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 655499752.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40968727 + ... + 40968742.

Almost surely, 2^655499752 is an apocalyptic number.

It is an amenable number.

655499752 is a deficient number, since it is larger than the sum of its proper divisors (573562298).

655499752 is a wasteful number, since it uses less digits than its factorization.

655499752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81937475 (or 81937471 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 52.

The square root of 655499752 is about 25602.7293857510. The cubic root of 655499752 is about 868.6753753197.

The spelling of 655499752 in words is "six hundred fifty-five million, four hundred ninety-nine thousand, seven hundred fifty-two".