51443053 has 4 divisors (see below), whose sum is σ = 51459388. Its totient is φ = 51426720.

The previous prime is 51443033. The next prime is 51443057. The reversal of 51443053 is 35034415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24631369 + 26811684 = 4963^2 + 5178^2 .

It is a cyclic number.

It is not a de Polignac number, because 51443053 - 2¹³ = 51434861 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 (51443057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776 + ... + 10297.

It is an arithmetic number, because the mean of its divisors is an integer number (12864847).

Almost surely, 2^51443053 is an apocalyptic number.

It is an amenable number.

51443053 is a deficient number, since it is larger than the sum of its proper divisors (16335).

51443053 is a wasteful number, since it uses less digits than its factorization.

51443053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16334.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 51443053 is about 7172.3812642664. The cubic root of 51443053 is about 371.9137585759.

Adding to 51443053 its reverse (35034415), we get a palindrome (86477468).

The spelling of 51443053 in words is "fifty-one million, four hundred forty-three thousand, fifty-three".