255902747 has 4 divisors (see below), whose sum is σ = 260097936. Its totient is φ = 251707560.

The previous prime is 255902743. The next prime is 255902749. The reversal of 255902747 is 747209552.

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 255902747 - 2² = 255902743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255902743) 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, 2097503 + ... + 2097624.

It is an arithmetic number, because the mean of its divisors is an integer number (65024484).

Almost surely, 2^255902747 is an apocalyptic number.

255902747 is a deficient number, since it is larger than the sum of its proper divisors (4195189).

255902747 is an equidigital number, since it uses as much as digits as its factorization.

255902747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195188.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 255902747 is about 15996.9605550555. The cubic root of 255902747 is about 634.8800046061.

The spelling of 255902747 in words is "two hundred fifty-five million, nine hundred two thousand, seven hundred forty-seven".