51224363 has 4 divisors (see below), whose sum is σ = 51841608. Its totient is φ = 50607120.

The previous prime is 51224359. The next prime is 51224389. The reversal of 51224363 is 36342215.

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

It is a cyclic number.

It is not a de Polignac number, because 51224363 - 2² = 51224359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51224963) 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, 308498 + ... + 308663.

It is an arithmetic number, because the mean of its divisors is an integer number (12960402).

Almost surely, 2^51224363 is an apocalyptic number.

51224363 is a deficient number, since it is larger than the sum of its proper divisors (617245).

51224363 is an equidigital number, since it uses as much as digits as its factorization.

51224363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617244.

The product of its digits is 4320, while the sum is 26.

The square root of 51224363 is about 7157.1197419074. The cubic root of 51224363 is about 371.3859947604.

Adding to 51224363 its reverse (36342215), we get a palindrome (87566578).

The spelling of 51224363 in words is "fifty-one million, two hundred twenty-four thousand, three hundred sixty-three".