255623434 has 8 divisors (see below), whose sum is σ = 418292928. Its totient is φ = 116192460.

The previous prime is 255623413. The next prime is 255623447. The reversal of 255623434 is 434326552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 255623434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5809602 + ... + 5809645.

It is an arithmetic number, because the mean of its divisors is an integer number (52286616).

Almost surely, 2^255623434 is an apocalyptic number.

255623434 is a deficient number, since it is larger than the sum of its proper divisors (162669494).

255623434 is a wasteful number, since it uses less digits than its factorization.

255623434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11619260.

The product of its digits is 86400, while the sum is 34.

The square root of 255623434 is about 15988.2279818622. The cubic root of 255623434 is about 634.6489340171.

Adding to 255623434 its reverse (434326552), we get a palindrome (689949986).

The spelling of 255623434 in words is "two hundred fifty-five million, six hundred twenty-three thousand, four hundred thirty-four".