255153839 has 4 divisors (see below), whose sum is σ = 263384640. Its totient is φ = 246923040.

The previous prime is 255153797. The next prime is 255153893. The reversal of 255153839 is 938351552.

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 255153839 - 2²⁰ = 254105263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255153796 and 255153805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255153139) 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, 4115354 + ... + 4115415.

It is an arithmetic number, because the mean of its divisors is an integer number (65846160).

Almost surely, 2^255153839 is an apocalyptic number.

255153839 is a deficient number, since it is larger than the sum of its proper divisors (8230801).

255153839 is an equidigital number, since it uses as much as digits as its factorization.

255153839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230800.

The product of its digits is 162000, while the sum is 41.

The square root of 255153839 is about 15973.5355823312. The cubic root of 255153839 is about 634.2600668904.

The spelling of 255153839 in words is "two hundred fifty-five million, one hundred fifty-three thousand, eight hundred thirty-nine".