255561458 has 8 divisors (see below), whose sum is σ = 395708160. Its totient is φ = 123658740.

The previous prime is 255561443. The next prime is 255561463. The reversal of 255561458 is 854165552.

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

It is a Curzon number.

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, 2060918 + ... + 2061041.

It is an arithmetic number, because the mean of its divisors is an integer number (49463520).

Almost surely, 2^255561458 is an apocalyptic number.

255561458 is a deficient number, since it is larger than the sum of its proper divisors (140146702).

255561458 is a wasteful number, since it uses less digits than its factorization.

255561458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121992.

The product of its digits is 240000, while the sum is 41.

The square root of 255561458 is about 15986.2896883548. The cubic root of 255561458 is about 634.5976395786.

The spelling of 255561458 in words is "two hundred fifty-five million, five hundred sixty-one thousand, four hundred fifty-eight".