255216342 has 16 divisors (see below), whose sum is σ = 540458352. Its totient is φ = 80067840.

The previous prime is 255216337. The next prime is 255216361. The reversal of 255216342 is 243612552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250959 + ... + 1251162.

It is an arithmetic number, because the mean of its divisors is an integer number (33778647).

Almost surely, 2^255216342 is an apocalyptic number.

255216342 is an abundant number, since it is smaller than the sum of its proper divisors (285242010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255216342 is a wasteful number, since it uses less digits than its factorization.

255216342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502143.

The product of its digits is 14400, while the sum is 30.

The square root of 255216342 is about 15975.4919173088. The cubic root of 255216342 is about 634.3118525381.

Adding to 255216342 its reverse (243612552), we get a palindrome (498828894).

The spelling of 255216342 in words is "two hundred fifty-five million, two hundred sixteen thousand, three hundred forty-two".