255064591 has 4 divisors (see below), whose sum is σ = 255158392. Its totient is φ = 254970792.

The previous prime is 255064553. The next prime is 255064603. The reversal of 255064591 is 195460552.

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 255064591 - 2⁷ = 255064463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255064591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255064091) 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, 42696 + ... + 48301.

It is an arithmetic number, because the mean of its divisors is an integer number (63789598).

Almost surely, 2^255064591 is an apocalyptic number.

255064591 is a deficient number, since it is larger than the sum of its proper divisors (93801).

255064591 is an equidigital number, since it uses as much as digits as its factorization.

255064591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93800.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 255064591 is about 15970.7417172779. The cubic root of 255064591 is about 634.1861075307.

The spelling of 255064591 in words is "two hundred fifty-five million, sixty-four thousand, five hundred ninety-one".