51364465 has 8 divisors (see below), whose sum is σ = 61743528. Its totient is φ = 41020800.

The previous prime is 51364447. The next prime is 51364493. The reversal of 51364465 is 56446315.

51364465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13307904 + 38056561 = 3648^2 + 6169^2 .

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

It is not a de Polignac number, because 51364465 - 2⁵ = 51364433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51364465.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5542 + ... + 11551.

It is an arithmetic number, because the mean of its divisors is an integer number (7717941).

Almost surely, 2^51364465 is an apocalyptic number.

It is an amenable number.

51364465 is a deficient number, since it is larger than the sum of its proper divisors (10379063).

51364465 is a wasteful number, since it uses less digits than its factorization.

51364465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17699.

The product of its digits is 43200, while the sum is 34.

The square root of 51364465 is about 7166.9006550949. The cubic root of 51364465 is about 371.7242749109.

The spelling of 51364465 in words is "fifty-one million, three hundred sixty-four thousand, four hundred sixty-five".