255542457 has 8 divisors (see below), whose sum is σ = 358656160. Its totient is φ = 161395200.

The previous prime is 255542447. The next prime is 255542471. The reversal of 255542457 is 754245552.

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

It is not a de Polignac number, because 255542457 - 2¹⁵ = 255509689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255542447) 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, 2241544 + ... + 2241657.

It is an arithmetic number, because the mean of its divisors is an integer number (44832020).

Almost surely, 2^255542457 is an apocalyptic number.

It is an amenable number.

255542457 is a deficient number, since it is larger than the sum of its proper divisors (103113703).

255542457 is a wasteful number, since it uses less digits than its factorization.

255542457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483223.

The product of its digits is 280000, while the sum is 39.

The square root of 255542457 is about 15985.6953868138. The cubic root of 255542457 is about 634.5819117393.

The spelling of 255542457 in words is "two hundred fifty-five million, five hundred forty-two thousand, four hundred fifty-seven".