255620358 has 72 divisors (see below), whose sum is σ = 665121600. Its totient is φ = 70670880.

The previous prime is 255620341. The next prime is 255620401. The reversal of 255620358 is 853026552.

It is a happy number.

255620358 is a `hidden beast` number, since 25 + 5 + 620 + 3 + 5 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22668 + ... + 32016.

It is an arithmetic number, because the mean of its divisors is an integer number (9237800).

Almost surely, 2^255620358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255620358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332560800).

255620358 is an abundant number, since it is smaller than the sum of its proper divisors (409501242).

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

255620358 is a wasteful number, since it uses less digits than its factorization.

255620358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9402 (or 9392 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 255620358 is about 15988.1317857966. The cubic root of 255620358 is about 634.6463883611.

The spelling of 255620358 in words is "two hundred fifty-five million, six hundred twenty thousand, three hundred fifty-eight".