255415132 has 48 divisors (see below), whose sum is σ = 518418432. Its totient is φ = 107853120.

The previous prime is 255415129. The next prime is 255415133. The reversal of 255415132 is 231514552.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 255415132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255415133) 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, 871578 + ... + 871870.

It is an arithmetic number, because the mean of its divisors is an integer number (10800384).

Almost surely, 2^255415132 is an apocalyptic number.

It is an amenable number.

255415132 is an abundant number, since it is smaller than the sum of its proper divisors (263003300).

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

255415132 is a wasteful number, since it uses less digits than its factorization.

255415132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 255415132 is about 15981.7124238925. The cubic root of 255415132 is about 634.4764999474.

Adding to 255415132 its reverse (231514552), we get a palindrome (486929684).

The spelling of 255415132 in words is "two hundred fifty-five million, four hundred fifteen thousand, one hundred thirty-two".