255755776 has 20 divisors (see below), whose sum is σ = 511013052. Its totient is φ = 127877632.

The previous prime is 255755771. The next prime is 255755777. The reversal of 255755776 is 677557552.

It is a super-2 number, since 2×255755776² = 130822033914724352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255755771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249250 + ... + 250273.

Almost surely, 2^255755776 is an apocalyptic number.

It is an amenable number.

255755776 is a deficient number, since it is larger than the sum of its proper divisors (255257276).

255755776 is an frugal number, since it uses more digits than its factorization.

255755776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499541 (or 499525 counting only the distinct ones).

The product of its digits is 2572500, while the sum is 49.

The square root of 255755776 is about 15992.3661788992. The cubic root of 255755776 is about 634.7584391297.

The spelling of 255755776 in words is "two hundred fifty-five million, seven hundred fifty-five thousand, seven hundred seventy-six".