255857044 has 6 divisors (see below), whose sum is σ = 447749834. Its totient is φ = 127928520.

The previous prime is 255857029. The next prime is 255857057. The reversal of 255857044 is 440758552.

It can be written as a sum of positive squares in only one way, i.e., 139476100 + 116380944 = 11810^2 + 10788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255856988 and 255857006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31982127 + ... + 31982134.

Almost surely, 2^255857044 is an apocalyptic number.

It is an amenable number.

255857044 is a deficient number, since it is larger than the sum of its proper divisors (191892790).

255857044 is a wasteful number, since it uses less digits than its factorization.

255857044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63964265 (or 63964263 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 40.

The square root of 255857044 is about 15995.5320011558. The cubic root of 255857044 is about 634.8422068506.

The spelling of 255857044 in words is "two hundred fifty-five million, eight hundred fifty-seven thousand, forty-four".