51324733 has 4 divisors (see below), whose sum is σ = 51340000. Its totient is φ = 51309468.

The previous prime is 51324709. The next prime is 51324739. The reversal of 51324733 is 33742315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51324733 - 2¹³ = 51316541 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 (51324739) 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, 135 + ... + 10132.

It is an arithmetic number, because the mean of its divisors is an integer number (12835000).

Almost surely, 2^51324733 is an apocalyptic number.

It is an amenable number.

51324733 is a deficient number, since it is larger than the sum of its proper divisors (15267).

51324733 is a wasteful number, since it uses less digits than its factorization.

51324733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15266.

The product of its digits is 7560, while the sum is 28.

The square root of 51324733 is about 7164.1282093497. The cubic root of 51324733 is about 371.6284034512.

The spelling of 51324733 in words is "fifty-one million, three hundred twenty-four thousand, seven hundred thirty-three".