15997052 has 24 divisors (see below), whose sum is σ = 29931552. Its totient is φ = 7462400.

The previous prime is 15997039. The next prime is 15997057. The reversal of 15997052 is 25079951.

15997052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15996997 and 15997015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15997057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652 + ... + 5892.

It is an arithmetic number, because the mean of its divisors is an integer number (1247148).

Almost surely, 2^15997052 is an apocalyptic number.

It is an amenable number.

15997052 is a deficient number, since it is larger than the sum of its proper divisors (13934500).

15997052 is a wasteful number, since it uses less digits than its factorization.

15997052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 15997052 is about 3999.6314830244. The cubic root of 15997052 is about 251.9687329982.

The spelling of 15997052 in words is "fifteen million, nine hundred ninety-seven thousand, fifty-two".