255307953 has 4 divisors (see below), whose sum is σ = 340410608. Its totient is φ = 170205300.

The previous prime is 255307951. The next prime is 255307957. The reversal of 255307953 is 359703552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 255307953 - 2¹ = 255307951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255307951) 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, 42551323 + ... + 42551328.

It is an arithmetic number, because the mean of its divisors is an integer number (85102652).

Almost surely, 2^255307953 is an apocalyptic number.

It is an amenable number.

255307953 is a deficient number, since it is larger than the sum of its proper divisors (85102655).

255307953 is an equidigital number, since it uses as much as digits as its factorization.

255307953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85102654.

The product of its (nonzero) digits is 141750, while the sum is 39.

The square root of 255307953 is about 15978.3588957064. The cubic root of 255307953 is about 634.3877397783.

The spelling of 255307953 in words is "two hundred fifty-five million, three hundred seven thousand, nine hundred fifty-three".