825372556 has 24 divisors (see below), whose sum is σ = 1452583440. Its totient is φ = 410356800.

The previous prime is 825372553. The next prime is 825372557. The reversal of 825372556 is 655273528.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (825372553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698286 + ... + 699466.

It is an arithmetic number, because the mean of its divisors is an integer number (60524310).

Almost surely, 2^825372556 is an apocalyptic number.

It is an amenable number.

825372556 is a deficient number, since it is larger than the sum of its proper divisors (627210884).

825372556 is a wasteful number, since it uses less digits than its factorization.

825372556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2023 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 825372556 is about 28729.2978682042. The cubic root of 825372556 is about 938.0298846488.

The spelling of 825372556 in words is "eight hundred twenty-five million, three hundred seventy-two thousand, five hundred fifty-six".