12997552 has 10 divisors (see below), whose sum is σ = 25182788. Its totient is φ = 6498768.

The previous prime is 12997549. The next prime is 12997573. The reversal of 12997552 is 25579921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406158 + ... + 406189.

Almost surely, 2^12997552 is an apocalyptic number.

It is an amenable number.

12997552 is a deficient number, since it is larger than the sum of its proper divisors (12185236).

12997552 is an equidigital number, since it uses as much as digits as its factorization.

12997552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812355 (or 812349 counting only the distinct ones).

The product of its digits is 56700, while the sum is 40.

The square root of 12997552 is about 3605.2117829609. The cubic root of 12997552 is about 235.1187086986.

The spelling of 12997552 in words is "twelve million, nine hundred ninety-seven thousand, five hundred fifty-two".