51364533 has 8 divisors (see below), whose sum is σ = 74712096. Its totient is φ = 31130000.

The previous prime is 51364519. The next prime is 51364549. The reversal of 51364533 is 33546315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51364533 - 2¹² = 51360437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51364533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51364583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778218 + ... + 778283.

It is an arithmetic number, because the mean of its divisors is an integer number (9339012).

Almost surely, 2^51364533 is an apocalyptic number.

It is an amenable number.

51364533 is a deficient number, since it is larger than the sum of its proper divisors (23347563).

51364533 is a wasteful number, since it uses less digits than its factorization.

51364533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556515.

The product of its digits is 16200, while the sum is 30.

The square root of 51364533 is about 7166.9053991245. The cubic root of 51364533 is about 371.7244389493.

It can be divided in two parts, 5136 and 4533, that added together give a palindrome (9669).

The spelling of 51364533 in words is "fifty-one million, three hundred sixty-four thousand, five hundred thirty-three".