51264089 has 4 divisors (see below), whose sum is σ = 51840180. Its totient is φ = 50688000.

The previous prime is 51264053. The next prime is 51264107. The reversal of 51264089 is 98046215.

51264089 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 can be written as a sum of positive squares in 2 ways, for example, as 13564489 + 37699600 = 3683^2 + 6140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51264089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51264019) 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, 287912 + ... + 288089.

It is an arithmetic number, because the mean of its divisors is an integer number (12960045).

Almost surely, 2^51264089 is an apocalyptic number.

It is an amenable number.

51264089 is a deficient number, since it is larger than the sum of its proper divisors (576091).

51264089 is an equidigital number, since it uses as much as digits as its factorization.

51264089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576090.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 51264089 is about 7159.8944824627. The cubic root of 51264089 is about 371.4819768728.

The spelling of 51264089 in words is "fifty-one million, two hundred sixty-four thousand, eighty-nine".