51264473 has 8 divisors (see below), whose sum is σ = 56555016. Its totient is φ = 46166400.

The previous prime is 51264463. The next prime is 51264481. The reversal of 51264473 is 37446215.

It can be written as a sum of positive squares in 4 ways, for example, as 3888784 + 47375689 = 1972^2 + 6883^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51264473 - 2⁴ = 51264457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51264463) 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, 47558 + ... + 48623.

It is an arithmetic number, because the mean of its divisors is an integer number (7069377).

Almost surely, 2^51264473 is an apocalyptic number.

It is an amenable number.

51264473 is a deficient number, since it is larger than the sum of its proper divisors (5290543).

51264473 is a wasteful number, since it uses less digits than its factorization.

51264473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96235.

The product of its digits is 20160, while the sum is 32.

The square root of 51264473 is about 7159.9212984501. The cubic root of 51264473 is about 371.4829044144.

The spelling of 51264473 in words is "fifty-one million, two hundred sixty-four thousand, four hundred seventy-three".