51234201 has 10 divisors (see below), whose sum is σ = 76535162. Its totient is φ = 34156080.

The previous prime is 51234193. The next prime is 51234217. The reversal of 51234201 is 10243215.

Added to its reverse (10243215) it gives a triangular number (61477416 = T₁₁₀₈₈).

51234201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50424201 + 810000 = 7101^2 + 900^2 .

It is not a de Polignac number, because 51234201 - 2³ = 51234193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234221) 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 9 ways as a sum of consecutive naturals, for example, 316180 + ... + 316341.

Almost surely, 2^51234201 is an apocalyptic number.

It is an amenable number.

51234201 is a deficient number, since it is larger than the sum of its proper divisors (25300961).

51234201 is an equidigital number, since it uses as much as digits as its factorization.

51234201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632533 (or 632524 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51234201 is about 7157.8069965598. The cubic root of 51234201 is about 371.4097690045.

Adding to 51234201 its reverse (10243215), we get a palindrome (61477416).

The spelling of 51234201 in words is "fifty-one million, two hundred thirty-four thousand, two hundred one".