51203253 has 8 divisors (see below), whose sum is σ = 68578048. Its totient is φ = 33981984.

The previous prime is 51203249. The next prime is 51203261. The reversal of 51203253 is 35230215.

51203253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51203253 - 2² = 51203249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51203203) 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 7 ways as a sum of consecutive naturals, for example, 37600 + ... + 38937.

It is an arithmetic number, because the mean of its divisors is an integer number (8572256).

Almost surely, 2^51203253 is an apocalyptic number.

It is an amenable number.

51203253 is a deficient number, since it is larger than the sum of its proper divisors (17374795).

51203253 is a wasteful number, since it uses less digits than its factorization.

51203253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76763.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51203253 is about 7155.6448346742. The cubic root of 51203253 is about 371.3349706311.

Adding to 51203253 its reverse (35230215), we get a palindrome (86433468).

The spelling of 51203253 in words is "fifty-one million, two hundred three thousand, two hundred fifty-three".