255156738 has 16 divisors (see below), whose sum is σ = 537172320. Its totient is φ = 80575776.

The previous prime is 255156697. The next prime is 255156739. The reversal of 255156738 is 837651552.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255156738.

It is not an unprimeable number, because it can be changed into a prime (255156739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118995 + ... + 1119222.

It is an arithmetic number, because the mean of its divisors is an integer number (33573270).

Almost surely, 2^255156738 is an apocalyptic number.

255156738 is an abundant number, since it is smaller than the sum of its proper divisors (282015582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255156738 is a wasteful number, since it uses less digits than its factorization.

255156738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238241.

The product of its digits is 252000, while the sum is 42.

The square root of 255156738 is about 15973.6263259161. The cubic root of 255156738 is about 634.2624689876.

The spelling of 255156738 in words is "two hundred fifty-five million, one hundred fifty-six thousand, seven hundred thirty-eight".