255453738 has 8 divisors (see below), whose sum is σ = 510907488. Its totient is φ = 85151244.

The previous prime is 255453719. The next prime is 255453743. The reversal of 255453738 is 837354552.

It is a happy number.

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

255453738 is an admirable number.

It is a super-2 number, since 2×255453738² = 130513224516345288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255453738.

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, 21287806 + ... + 21287817.

It is an arithmetic number, because the mean of its divisors is an integer number (63863436).

Almost surely, 2^255453738 is an apocalyptic number.

255453738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255453738 is a wasteful number, since it uses less digits than its factorization.

255453738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42575628.

The product of its digits is 504000, while the sum is 42.

The square root of 255453738 is about 15982.9201962595. The cubic root of 255453738 is about 634.5084653802.

The spelling of 255453738 in words is "two hundred fifty-five million, four hundred fifty-three thousand, seven hundred thirty-eight".