825215875 has 32 divisors (see below), whose sum is σ = 1127206080. Its totient is φ = 598176000.

The previous prime is 825215863. The next prime is 825215879. The reversal of 825215875 is 578512528.

It is not a de Polignac number, because 825215875 - 2⁵ = 825215843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825215879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512071 + ... + 513679.

It is an arithmetic number, because the mean of its divisors is an integer number (35225190).

Almost surely, 2^825215875 is an apocalyptic number.

825215875 is a deficient number, since it is larger than the sum of its proper divisors (301990205).

825215875 is a wasteful number, since it uses less digits than its factorization.

825215875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 1998 counting only the distinct ones).

The product of its digits is 224000, while the sum is 43.

The square root of 825215875 is about 28726.5708882909. The cubic root of 825215875 is about 937.9705252883.

The spelling of 825215875 in words is "eight hundred twenty-five million, two hundred fifteen thousand, eight hundred seventy-five".