255945534 has 64 divisors (see below), whose sum is σ = 569334528. Its totient is φ = 76204800.

The previous prime is 255945527. The next prime is 255945553. The reversal of 255945534 is 435549552.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521029 + ... + 521519.

It is an arithmetic number, because the mean of its divisors is an integer number (8895852).

Almost surely, 2^255945534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255945534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284667264).

255945534 is an abundant number, since it is smaller than the sum of its proper divisors (313388994).

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

255945534 is a wasteful number, since it uses less digits than its factorization.

255945534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its digits is 540000, while the sum is 42.

The square root of 255945534 is about 15998.2978469586. The cubic root of 255945534 is about 634.9153866633.

The spelling of 255945534 in words is "two hundred fifty-five million, nine hundred forty-five thousand, five hundred thirty-four".