997796525 has 12 divisors (see below), whose sum is σ = 1349746944. Its totient is φ = 725670000.

The previous prime is 997796461. The next prime is 997796537. The reversal of 997796525 is 525697799.

It is not a de Polignac number, because 997796525 - 2⁶ = 997796461 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 1813901 + ... + 1814450.

It is an arithmetic number, because the mean of its divisors is an integer number (112478912).

Almost surely, 2^997796525 is an apocalyptic number.

It is an amenable number.

997796525 is a deficient number, since it is larger than the sum of its proper divisors (351950419).

997796525 is a wasteful number, since it uses less digits than its factorization.

997796525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628372 (or 3628367 counting only the distinct ones).

The product of its digits is 10716300, while the sum is 59.

The square root of 997796525 is about 31587.9173894070. The cubic root of 997796525 is about 999.2649681939.

The spelling of 997796525 in words is "nine hundred ninety-seven million, seven hundred ninety-six thousand, five hundred twenty-five".