825222630 has 32 divisors (see below), whose sum is σ = 2084774400. Its totient is φ = 208477152.

The previous prime is 825222617. The next prime is 825222647. The reversal of 825222630 is 36222528.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723310 + ... + 724449.

It is an arithmetic number, because the mean of its divisors is an integer number (65149200).

Almost surely, 2^825222630 is an apocalyptic number.

825222630 is an abundant number, since it is smaller than the sum of its proper divisors (1259551770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

825222630 is a wasteful number, since it uses less digits than its factorization.

825222630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447788.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 825222630 is about 28726.6884621253. The cubic root of 825222630 is about 937.9730846080.

The spelling of 825222630 in words is "eight hundred twenty-five million, two hundred twenty-two thousand, six hundred thirty".