255215450 has 24 divisors (see below), whose sum is σ = 542515872. Its totient is φ = 87502320.

The previous prime is 255215413. The next prime is 255215453. The reversal of 255215450 is 54512552.

It is not an unprimeable number, because it can be changed into a prime (255215453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364244 + ... + 364943.

It is an arithmetic number, because the mean of its divisors is an integer number (22604828).

Almost surely, 2^255215450 is an apocalyptic number.

255215450 is an abundant number, since it is smaller than the sum of its proper divisors (287300422).

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

255215450 is a wasteful number, since it uses less digits than its factorization.

255215450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729206 (or 729201 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 255215450 is about 15975.4639995213. The cubic root of 255215450 is about 634.3111135482.

The spelling of 255215450 in words is "two hundred fifty-five million, two hundred fifteen thousand, four hundred fifty".