51324453 has 18 divisors (see below), whose sum is σ = 78247494. Its totient is φ = 32413392.

The previous prime is 51324433. The next prime is 51324467. The reversal of 51324453 is 35442315.

It can be written as a sum of positive squares in only one way, i.e., 47568609 + 3755844 = 6897^2 + 1938^2 .

It is not a de Polignac number, because 51324453 - 2⁵ = 51324421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51324433) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4650 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (4347083).

Almost surely, 2^51324453 is an apocalyptic number.

It is an amenable number.

51324453 is a deficient number, since it is larger than the sum of its proper divisors (26923041).

51324453 is a wasteful number, since it uses less digits than its factorization.

51324453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15841 (or 15819 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 51324453 is about 7164.1086675175. The cubic root of 51324453 is about 371.6277276487.

Adding to 51324453 its reverse (35442315), we get a palindrome (86766768).

The spelling of 51324453 in words is "fifty-one million, three hundred twenty-four thousand, four hundred fifty-three".