255497964 has 36 divisors (see below), whose sum is σ = 633301704. Its totient is φ = 80155136.

The previous prime is 255497933. The next prime is 255497993. The reversal of 255497964 is 469794552.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33369 + ... + 40304.

It is an arithmetic number, because the mean of its divisors is an integer number (17591714).

Almost surely, 2^255497964 is an apocalyptic number.

It is an amenable number.

255497964 is an abundant number, since it is smaller than the sum of its proper divisors (377803740).

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

255497964 is a wasteful number, since it uses less digits than its factorization.

255497964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73714 (or 73695 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 51.

The square root of 255497964 is about 15984.3036757940. The cubic root of 255497964 is about 634.5450801666.

The spelling of 255497964 in words is "two hundred fifty-five million, four hundred ninety-seven thousand, nine hundred sixty-four".