255725447071 has 4 divisors (see below), whose sum is σ = 258071552200. Its totient is φ = 253379341944.

The previous prime is 255725447063. The next prime is 255725447113. The reversal of 255725447071 is 170744527552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255725447071 - 2³ = 255725447063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255725447041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173052401 + ... + 1173052618.

It is an arithmetic number, because the mean of its divisors is an integer number (64517888050).

Almost surely, 2^255725447071 is an apocalyptic number.

255725447071 is a deficient number, since it is larger than the sum of its proper divisors (2346105129).

255725447071 is a wasteful number, since it uses less digits than its factorization.

255725447071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346105128.

The product of its (nonzero) digits is 2744000, while the sum is 49.

The spelling of 255725447071 in words is "two hundred fifty-five billion, seven hundred twenty-five million, four hundred forty-seven thousand, seventy-one".