51364963 has 4 divisors (see below), whose sum is σ = 55316128. Its totient is φ = 47413800.

The previous prime is 51364949. The next prime is 51364979. The reversal of 51364963 is 36946315.

51364963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51364963 - 2¹³ = 51356771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51364933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1975563 + ... + 1975588.

It is an arithmetic number, because the mean of its divisors is an integer number (13829032).

Almost surely, 2^51364963 is an apocalyptic number.

51364963 is a deficient number, since it is larger than the sum of its proper divisors (3951165).

51364963 is a wasteful number, since it uses less digits than its factorization.

51364963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951164.

The product of its digits is 58320, while the sum is 37.

The square root of 51364963 is about 7166.9353980624. The cubic root of 51364963 is about 371.7254762479.

The spelling of 51364963 in words is "fifty-one million, three hundred sixty-four thousand, nine hundred sixty-three".