255225015 has 24 divisors (see below), whose sum is σ = 456663168. Its totient is φ = 131728320.

The previous prime is 255225013. The next prime is 255225017. The reversal of 255225015 is 510522552.

It is an interprime number because it is at equal distance from previous prime (255225013) and next prime (255225017).

It is not a de Polignac number, because 255225015 - 2¹ = 255225013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255225015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255225013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90084 + ... + 92873.

It is an arithmetic number, because the mean of its divisors is an integer number (19027632).

Almost surely, 2^255225015 is an apocalyptic number.

255225015 is a deficient number, since it is larger than the sum of its proper divisors (201438153).

255225015 is a wasteful number, since it uses less digits than its factorization.

255225015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182999 (or 182996 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 255225015 is about 15975.7633620431. The cubic root of 255225015 is about 634.3190377158.

Adding to 255225015 its reverse (510522552), we get a palindrome (765747567).

The spelling of 255225015 in words is "two hundred fifty-five million, two hundred twenty-five thousand, fifteen".