997825052 has 24 divisors (see below), whose sum is σ = 2100685440. Its totient is φ = 405131760.

The previous prime is 997825043. The next prime is 997825057. The reversal of 997825052 is 250528799.

It is a junction number, because it is equal to n+sod(n) for n = 997824988 and 997825006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997825057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937274 + ... + 938337.

It is an arithmetic number, because the mean of its divisors is an integer number (87528560).

Almost surely, 2^997825052 is an apocalyptic number.

It is an amenable number.

997825052 is an abundant number, since it is smaller than the sum of its proper divisors (1102860388).

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

997825052 is a wasteful number, since it uses less digits than its factorization.

997825052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875641 (or 1875639 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 997825052 is about 31588.3689354167. The cubic root of 997825052 is about 999.2744910975.

The spelling of 997825052 in words is "nine hundred ninety-seven million, eight hundred twenty-five thousand, fifty-two".