255532530 has 128 divisors (see below), whose sum is σ = 706185216. Its totient is φ = 58572800.

The previous prime is 255532523. The next prime is 255532549. The reversal of 255532530 is 35235552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 994162 + ... + 994418.

It is an arithmetic number, because the mean of its divisors is an integer number (5517072).

Almost surely, 2^255532530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255532530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353092608).

255532530 is an abundant number, since it is smaller than the sum of its proper divisors (450652686).

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

255532530 is a wasteful number, since it uses less digits than its factorization.

255532530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 255532530 is about 15985.3848874527. The cubic root of 255532530 is about 634.5736944796.

The spelling of 255532530 in words is "two hundred fifty-five million, five hundred thirty-two thousand, five hundred thirty".