255697734 has 16 divisors (see below), whose sum is σ = 527892480. Its totient is φ = 82483080.

The previous prime is 255697733. The next prime is 255697751. The reversal of 255697734 is 437796552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255697733) 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, 687174 + ... + 687545.

It is an arithmetic number, because the mean of its divisors is an integer number (32993280).

Almost surely, 2^255697734 is an apocalyptic number.

255697734 is an abundant number, since it is smaller than the sum of its proper divisors (272194746).

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

255697734 is a wasteful number, since it uses less digits than its factorization.

255697734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374755.

The product of its digits is 1587600, while the sum is 48.

The square root of 255697734 is about 15990.5513976223. The cubic root of 255697734 is about 634.7104174879.

The spelling of 255697734 in words is "two hundred fifty-five million, six hundred ninety-seven thousand, seven hundred thirty-four".