15648851 has 4 divisors (see below), whose sum is σ = 15659304. Its totient is φ = 15638400.

The previous prime is 15648827. The next prime is 15648859. The reversal of 15648851 is 15884651.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 15648851 - 2¹⁴ = 15632467 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (15648859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2510 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (3914826).

Almost surely, 2^15648851 is an apocalyptic number.

15648851 is a deficient number, since it is larger than the sum of its proper divisors (10453).

15648851 is an equidigital number, since it uses as much as digits as its factorization.

15648851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10452.

The product of its digits is 38400, while the sum is 38.

The square root of 15648851 is about 3955.8628641549. The cubic root of 15648851 is about 250.1271406634.

The spelling of 15648851 in words is "fifteen million, six hundred forty-eight thousand, eight hundred fifty-one".