255055442 has 4 divisors (see below), whose sum is σ = 382583166. Its totient is φ = 127527720.

The previous prime is 255055421. The next prime is 255055447. The reversal of 255055442 is 244550552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 220492801 + 34562641 = 14849^2 + 5879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255055399 and 255055408.

It is not an unprimeable number, because it can be changed into a prime (255055447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63763859 + ... + 63763862.

Almost surely, 2^255055442 is an apocalyptic number.

255055442 is a deficient number, since it is larger than the sum of its proper divisors (127527724).

255055442 is a wasteful number, since it uses less digits than its factorization.

255055442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127527723.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 255055442 is about 15970.4552846811. The cubic root of 255055442 is about 634.1785248265.

The spelling of 255055442 in words is "two hundred fifty-five million, fifty-five thousand, four hundred forty-two".