255679157147 has 4 divisors (see below), whose sum is σ = 255680493120. Its totient is φ = 255677821176.

The previous prime is 255679157137. The next prime is 255679157161. The reversal of 255679157147 is 741751976552.

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 255679157147 - 2²² = 255674962843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255679157137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320747 + ... + 783732.

It is an arithmetic number, because the mean of its divisors is an integer number (63920123280).

Almost surely, 2^255679157147 is an apocalyptic number.

255679157147 is a deficient number, since it is larger than the sum of its proper divisors (1335973).

255679157147 is a wasteful number, since it uses less digits than its factorization.

255679157147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335972.

The product of its digits is 18522000, while the sum is 59.

The spelling of 255679157147 in words is "two hundred fifty-five billion, six hundred seventy-nine million, one hundred fifty-seven thousand, one hundred forty-seven".