255025540 has 48 divisors (see below), whose sum is σ = 667707264. Its totient is φ = 79488000.

The previous prime is 255025531. The next prime is 255025579. The reversal of 255025540 is 45520552.

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

It is a junction number, because it is equal to n+sod(n) for n = 255025499 and 255025508.

It is an unprimeable number.

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, 81261 + ... + 84340.

It is an arithmetic number, because the mean of its divisors is an integer number (13910568).

Almost surely, 2^255025540 is an apocalyptic number.

255025540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255025540 is an abundant number, since it is smaller than the sum of its proper divisors (412681724).

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

255025540 is a wasteful number, since it uses less digits than its factorization.

255025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165628 (or 165626 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 255025540 is about 15969.5190910685. The cubic root of 255025540 is about 634.1537407413.

The spelling of 255025540 in words is "two hundred fifty-five million, twenty-five thousand, five hundred forty".