255251225 has 24 divisors (see below), whose sum is σ = 340945440. Its totient is φ = 188939520.

The previous prime is 255251207. The next prime is 255251237. The reversal of 255251225 is 522152552.

It is a de Polignac number, because none of the positive numbers 2^k-255251225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14177 + ... + 26673.

It is an arithmetic number, because the mean of its divisors is an integer number (14206060).

Almost surely, 2^255251225 is an apocalyptic number.

255251225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255251225 is a deficient number, since it is larger than the sum of its proper divisors (85694215).

255251225 is a wasteful number, since it uses less digits than its factorization.

255251225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12569 (or 12564 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 255251225 is about 15976.5836460740. The cubic root of 255251225 is about 634.3407504947.

The spelling of 255251225 in words is "two hundred fifty-five million, two hundred fifty-one thousand, two hundred twenty-five".