255293651 has 4 divisors (see below), whose sum is σ = 259104072. Its totient is φ = 251483232.

The previous prime is 255293639. The next prime is 255293659. The reversal of 255293651 is 156392552.

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 255293651 - 2²² = 251099347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255293659) 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, 1905110 + ... + 1905243.

It is an arithmetic number, because the mean of its divisors is an integer number (64776018).

Almost surely, 2^255293651 is an apocalyptic number.

255293651 is a deficient number, since it is larger than the sum of its proper divisors (3810421).

255293651 is an equidigital number, since it uses as much as digits as its factorization.

255293651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810420.

The product of its digits is 81000, while the sum is 38.

The square root of 255293651 is about 15977.9113466060. The cubic root of 255293651 is about 634.3758937145.

The spelling of 255293651 in words is "two hundred fifty-five million, two hundred ninety-three thousand, six hundred fifty-one".