255406632 has 64 divisors (see below), whose sum is σ = 689472000. Its totient is φ = 78376704.

The previous prime is 255406631. The next prime is 255406637. The reversal of 255406632 is 236604552.

It is a junction number, because it is equal to n+sod(n) for n = 255406593 and 255406602.

It is not an unprimeable number, because it can be changed into a prime (255406631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148594 + ... + 150302.

It is an arithmetic number, because the mean of its divisors is an integer number (10773000).

Almost surely, 2^255406632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255406632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344736000).

255406632 is an abundant number, since it is smaller than the sum of its proper divisors (434065368).

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

255406632 is a wasteful number, since it uses less digits than its factorization.

255406632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2206 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 255406632 is about 15981.4464927302. The cubic root of 255406632 is about 634.4694615885.

The spelling of 255406632 in words is "two hundred fifty-five million, four hundred six thousand, six hundred thirty-two".