255937133779 has 4 divisors (see below), whose sum is σ = 255953338920. Its totient is φ = 255920928640.

The previous prime is 255937133743. The next prime is 255937133801. The reversal of 255937133779 is 977331739552.

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 255937133779 - 2²⁷ = 255802916051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255937133479) 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, 8078857 + ... + 8110474.

It is an arithmetic number, because the mean of its divisors is an integer number (63988334730).

Almost surely, 2^255937133779 is an apocalyptic number.

255937133779 is a deficient number, since it is larger than the sum of its proper divisors (16205141).

255937133779 is a wasteful number, since it uses less digits than its factorization.

255937133779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16205140.

The product of its digits is 37507050, while the sum is 61.

The spelling of 255937133779 in words is "two hundred fifty-five billion, nine hundred thirty-seven million, one hundred thirty-three thousand, seven hundred seventy-nine".