51252003 has 24 divisors (see below), whose sum is σ = 81010800. Its totient is φ = 30965760.

The previous prime is 51251951. The next prime is 51252013. The reversal of 51252003 is 30025215.

It is a happy number.

It is not a de Polignac number, because 51252003 - 2⁶ = 51251939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51252013) 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 23 ways as a sum of consecutive naturals, for example, 43875 + ... + 45027.

It is an arithmetic number, because the mean of its divisors is an integer number (3375450).

Almost surely, 2^51252003 is an apocalyptic number.

51252003 is a deficient number, since it is larger than the sum of its proper divisors (29758797).

51252003 is a wasteful number, since it uses less digits than its factorization.

51252003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 51252003 is about 7159.0504258596. The cubic root of 51252003 is about 371.4527811002.

Adding to 51252003 its reverse (30025215), we get a palindrome (81277218).

The spelling of 51252003 in words is "fifty-one million, two hundred fifty-two thousand, three".