51263323 has 4 divisors (see below), whose sum is σ = 52354080. Its totient is φ = 50172568.

The previous prime is 51263321. The next prime is 51263327. The reversal of 51263323 is 32336215.

It is a happy number.

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 51263323 - 2¹ = 51263321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51263321) 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, 545308 + ... + 545401.

It is an arithmetic number, because the mean of its divisors is an integer number (13088520).

Almost surely, 2^51263323 is an apocalyptic number.

51263323 is a deficient number, since it is larger than the sum of its proper divisors (1090757).

51263323 is a wasteful number, since it uses less digits than its factorization.

51263323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090756.

The product of its digits is 3240, while the sum is 25.

The square root of 51263323 is about 7159.8409898545. The cubic root of 51263323 is about 371.4801266067.

Adding to 51263323 its reverse (32336215), we get a palindrome (83599538).

It can be divided in two parts, 512633 and 23, that added together give a square (512656 = 716²).

The spelling of 51263323 in words is "fifty-one million, two hundred sixty-three thousand, three hundred twenty-three".