51324293 has 4 divisors (see below), whose sum is σ = 53555808. Its totient is φ = 49092780.

The previous prime is 51324283. The next prime is 51324307. The reversal of 51324293 is 39242315.

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 51324293 - 2¹⁰ = 51323269 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 (51324223) 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, 1115723 + ... + 1115768.

It is an arithmetic number, because the mean of its divisors is an integer number (13388952).

Almost surely, 2^51324293 is an apocalyptic number.

It is an amenable number.

51324293 is a deficient number, since it is larger than the sum of its proper divisors (2231515).

51324293 is a wasteful number, since it uses less digits than its factorization.

51324293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231514.

The product of its digits is 6480, while the sum is 29.

The square root of 51324293 is about 7164.0975007324. The cubic root of 51324293 is about 371.6273414748.

The spelling of 51324293 in words is "fifty-one million, three hundred twenty-four thousand, two hundred ninety-three".