51440301 has 24 divisors (see below), whose sum is σ = 81297216. Its totient is φ = 31083840.

The previous prime is 51440299. The next prime is 51440303. The reversal of 51440301 is 10304415.

It is a happy number.

51440301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51440299) and next prime (51440303).

It is not a de Polignac number, because 51440301 - 2¹ = 51440299 is a prime.

It is a super-2 number, since 2×51440301² = 5292209133941202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51440303) 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 23 ways as a sum of consecutive naturals, for example, 49281 + ... + 50313.

It is an arithmetic number, because the mean of its divisors is an integer number (3387384).

Almost surely, 2^51440301 is an apocalyptic number.

It is an amenable number.

51440301 is a deficient number, since it is larger than the sum of its proper divisors (29856915).

51440301 is a wasteful number, since it uses less digits than its factorization.

51440301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1550 counting only the distinct ones).

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

The square root of 51440301 is about 7172.1894146767. The cubic root of 51440301 is about 371.9071264856.

Adding to 51440301 its reverse (10304415), we get a palindrome (61744716).

The spelling of 51440301 in words is "fifty-one million, four hundred forty thousand, three hundred one".