255438458 has 8 divisors (see below), whose sum is σ = 417990240. Its totient is φ = 116108380.

The previous prime is 255438401. The next prime is 255438497. The reversal of 255438458 is 854834552.

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

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, 5805398 + ... + 5805441.

It is an arithmetic number, because the mean of its divisors is an integer number (52248780).

Almost surely, 2^255438458 is an apocalyptic number.

255438458 is a deficient number, since it is larger than the sum of its proper divisors (162551782).

255438458 is a wasteful number, since it uses less digits than its factorization.

255438458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11610852.

The product of its digits is 768000, while the sum is 44.

The square root of 255438458 is about 15982.4421788411. The cubic root of 255438458 is about 634.4958140580.

The spelling of 255438458 in words is "two hundred fifty-five million, four hundred thirty-eight thousand, four hundred fifty-eight".