255700071 has 20 divisors (see below), whose sum is σ = 416697864. Its totient is φ = 154969200.

The previous prime is 255700057. The next prime is 255700097. The reversal of 255700071 is 170007552.

255700071 is a `hidden beast` number, since 25 + 570 + 0 + 0 + 71 = 666.

It is not a de Polignac number, because 255700071 - 2¹³ = 255691879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255700001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 142600 + ... + 144381.

Almost surely, 2^255700071 is an apocalyptic number.

255700071 is a deficient number, since it is larger than the sum of its proper divisors (160997793).

255700071 is a wasteful number, since it uses less digits than its factorization.

255700071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287004 (or 286995 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 255700071 is about 15990.6244718585. The cubic root of 255700071 is about 634.7123511692.

The spelling of 255700071 in words is "two hundred fifty-five million, seven hundred thousand, seventy-one".