255477242 has 16 divisors (see below), whose sum is σ = 395418240. Its totient is φ = 123727488.

The previous prime is 255477239. The next prime is 255477301. The reversal of 255477242 is 242774552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 255477196 and 255477205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4892 + ... + 23127.

It is an arithmetic number, because the mean of its divisors is an integer number (24713640).

Almost surely, 2^255477242 is an apocalyptic number.

255477242 is a deficient number, since it is larger than the sum of its proper divisors (139940998).

255477242 is a wasteful number, since it uses less digits than its factorization.

255477242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28165.

The product of its digits is 156800, while the sum is 38.

The square root of 255477242 is about 15983.6554642547. The cubic root of 255477242 is about 634.5279249109.

The spelling of 255477242 in words is "two hundred fifty-five million, four hundred seventy-seven thousand, two hundred forty-two".