51344553 has 8 divisors (see below), whose sum is σ = 73725568. Its totient is φ = 31596624.

The previous prime is 51344551. The next prime is 51344561. The reversal of 51344553 is 35544315.

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

It is not a de Polignac number, because 51344553 - 2¹ = 51344551 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51344553.

It is not an unprimeable number, because it can be changed into a prime (51344551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658225 + ... + 658302.

It is an arithmetic number, because the mean of its divisors is an integer number (9215696).

Almost surely, 2^51344553 is an apocalyptic number.

It is an amenable number.

51344553 is a deficient number, since it is larger than the sum of its proper divisors (22381015).

51344553 is a wasteful number, since it uses less digits than its factorization.

51344553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316543.

The product of its digits is 18000, while the sum is 30.

The square root of 51344553 is about 7165.5113564909. The cubic root of 51344553 is about 371.6762343675.

Adding to 51344553 its reverse (35544315), we get a palindrome (86888868).

The spelling of 51344553 in words is "fifty-one million, three hundred forty-four thousand, five hundred fifty-three".