825221502 has 48 divisors (see below), whose sum is σ = 2045377152. Its totient is φ = 235550160.

The previous prime is 825221483. The next prime is 825221521. The reversal of 825221502 is 205122528.

It is an interprime number because it is at equal distance from previous prime (825221483) and next prime (825221521).

It is a congruent number.

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, 162177 + ... + 167187.

It is an arithmetic number, because the mean of its divisors is an integer number (42612024).

Almost surely, 2^825221502 is an apocalyptic number.

825221502 is an abundant number, since it is smaller than the sum of its proper divisors (1220155650).

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

825221502 is a wasteful number, since it uses less digits than its factorization.

825221502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 825221502 is about 28726.6688288078. The cubic root of 825221502 is about 937.9726572348.

The spelling of 825221502 in words is "eight hundred twenty-five million, two hundred twenty-one thousand, five hundred two".