997530925 has 12 divisors (see below), whose sum is σ = 1243420416. Its totient is φ = 793842800.

The previous prime is 997530923. The next prime is 997530929. The reversal of 997530925 is 529035799.

It is not a de Polignac number, because 997530925 - 2¹ = 997530923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997530923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99679 + ... + 109228.

It is an arithmetic number, because the mean of its divisors is an integer number (103618368).

Almost surely, 2^997530925 is an apocalyptic number.

It is an amenable number.

997530925 is a deficient number, since it is larger than the sum of its proper divisors (245889491).

997530925 is a wasteful number, since it uses less digits than its factorization.

997530925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209108 (or 209103 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 49.

The square root of 997530925 is about 31583.7129704536. The cubic root of 997530925 is about 999.1762966992.

The spelling of 997530925 in words is "nine hundred ninety-seven million, five hundred thirty thousand, nine hundred twenty-five".