255219402 has 16 divisors (see below), whose sum is σ = 540464832. Its totient is φ = 80068800.

The previous prime is 255219347. The next prime is 255219403. The reversal of 255219402 is 204912552.

It is a self number, because there is not a number n which added to its sum of digits gives 255219402.

It is not an unprimeable number, because it can be changed into a prime (255219403) 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, 1250974 + ... + 1251177.

It is an arithmetic number, because the mean of its divisors is an integer number (33779052).

Almost surely, 2^255219402 is an apocalyptic number.

255219402 is an abundant number, since it is smaller than the sum of its proper divisors (285245430).

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

255219402 is a wasteful number, since it uses less digits than its factorization.

255219402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502173.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 255219402 is about 15975.5876887206. The cubic root of 255219402 is about 634.3143876246.

The spelling of 255219402 in words is "two hundred fifty-five million, two hundred nineteen thousand, four hundred two".