255550830 has 32 divisors (see below), whose sum is σ = 623721600. Its totient is φ = 66991392.

The previous prime is 255550829. The next prime is 255550831. The reversal of 255550830 is 38055552.

It is an interprime number because it is at equal distance from previous prime (255550829) and next prime (255550831).

It is a junction number, because it is equal to n+sod(n) for n = 255550791 and 255550800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255550831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70420 + ... + 73959.

It is an arithmetic number, because the mean of its divisors is an integer number (19491300).

Almost surely, 2^255550830 is an apocalyptic number.

255550830 is an abundant number, since it is smaller than the sum of its proper divisors (368170770).

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

255550830 is a wasteful number, since it uses less digits than its factorization.

255550830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144448.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 255550830 is about 15985.9572750586. The cubic root of 255550830 is about 634.5888424811.

The spelling of 255550830 in words is "two hundred fifty-five million, five hundred fifty thousand, eight hundred thirty".