254985220 has 36 divisors (see below), whose sum is σ = 622894860. Its totient is φ = 87423168.

The previous prime is 254985217. The next prime is 254985223. The reversal of 254985220 is 22589452.

It is an interprime number because it is at equal distance from previous prime (254985217) and next prime (254985223).

It can be written as a sum of positive squares in 2 ways, for example, as 129231424 + 125753796 = 11368^2 + 11214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 254985220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254985223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129115 + ... + 131074.

It is an arithmetic number, because the mean of its divisors is an integer number (17302635).

Almost surely, 2^254985220 is an apocalyptic number.

254985220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254985220 is an abundant number, since it is smaller than the sum of its proper divisors (367909640).

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

254985220 is a wasteful number, since it uses less digits than its factorization.

254985220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260212 (or 260203 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 254985220 is about 15968.2566362142. The cubic root of 254985220 is about 634.1203186947.

The spelling of 254985220 in words is "two hundred fifty-four million, nine hundred eighty-five thousand, two hundred twenty".