255155620 has 12 divisors (see below), whose sum is σ = 535826844. Its totient is φ = 102062240.

The previous prime is 255155597. The next prime is 255155623. The reversal of 255155620 is 26551552.

It can be written as a sum of positive squares in 2 ways, for example, as 73822464 + 181333156 = 8592^2 + 13466^2 .

It is not an unprimeable number, because it can be changed into a prime (255155623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6378871 + ... + 6378910.

It is an arithmetic number, because the mean of its divisors is an integer number (44652237).

Almost surely, 2^255155620 is an apocalyptic number.

255155620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255155620 is an abundant number, since it is smaller than the sum of its proper divisors (280671224).

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

255155620 is a wasteful number, since it uses less digits than its factorization.

255155620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12757790 (or 12757788 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 255155620 is about 15973.5913306933. The cubic root of 255155620 is about 634.2615426205.

The spelling of 255155620 in words is "two hundred fifty-five million, one hundred fifty-five thousand, six hundred twenty".