515535225 has 24 divisors (see below), whose sum is σ = 889413312. Its totient is φ = 262996800.

The previous prime is 515535197. The next prime is 515535257. The reversal of 515535225 is 522535515.

It is not a de Polignac number, because 515535225 - 2⁵ = 515535193 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, 147706 + ... + 151155.

It is an arithmetic number, because the mean of its divisors is an integer number (37058888).

Almost surely, 2^515535225 is an apocalyptic number.

It is an amenable number.

515535225 is a deficient number, since it is larger than the sum of its proper divisors (373878087).

515535225 is a wasteful number, since it uses less digits than its factorization.

515535225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298897 (or 298892 counting only the distinct ones).

The product of its digits is 37500, while the sum is 33.

The square root of 515535225 is about 22705.4007892396. The cubic root of 515535225 is about 801.8370413906.

The spelling of 515535225 in words is "five hundred fifteen million, five hundred thirty-five thousand, two hundred twenty-five".