825238515 has 16 divisors (see below), whose sum is σ = 1320979968. Its totient is φ = 439927776.

The previous prime is 825238511. The next prime is 825238541. The reversal of 825238515 is 515832528.

825238515 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 825238515 - 2² = 825238511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825238511) 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, 25464 + ... + 47946.

It is an arithmetic number, because the mean of its divisors is an integer number (82561248).

Almost surely, 2^825238515 is an apocalyptic number.

825238515 is a deficient number, since it is larger than the sum of its proper divisors (495741453).

825238515 is a wasteful number, since it uses less digits than its factorization.

825238515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24938.

The product of its digits is 96000, while the sum is 39.

The square root of 825238515 is about 28726.9649458484. The cubic root of 825238515 is about 937.9791030270.

The spelling of 825238515 in words is "eight hundred twenty-five million, two hundred thirty-eight thousand, five hundred fifteen".