51663003 has 16 divisors (see below), whose sum is σ = 80332800. Its totient is φ = 29521128.

The previous prime is 51662977. The next prime is 51663023. The reversal of 51663003 is 30036615.

It is not a de Polignac number, because 51663003 - 2¹² = 51658907 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51663023) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 24075 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (5020800).

Almost surely, 2^51663003 is an apocalyptic number.

51663003 is a deficient number, since it is larger than the sum of its proper divisors (28669797).

51663003 is an equidigital number, since it uses as much as digits as its factorization.

51663003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50231 (or 50217 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 51663003 is about 7187.6980320545. The cubic root of 51663003 is about 372.4430566230.

Adding to 51663003 its reverse (30036615), we get a palindrome (81699618).

The spelling of 51663003 in words is "fifty-one million, six hundred sixty-three thousand, three".