51089573 has 4 divisors (see below), whose sum is σ = 54094860. Its totient is φ = 48084288.

The previous prime is 51089569. The next prime is 51089587. The reversal of 51089573 is 37598015.

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 24226084 + 26863489 = 4922^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 51089573 - 2² = 51089569 is a prime.

It is a super-2 number, since 2×51089573² = 5220288938644658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51089543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502618 + ... + 1502651.

It is an arithmetic number, because the mean of its divisors is an integer number (13523715).

Almost surely, 2^51089573 is an apocalyptic number.

It is an amenable number.

51089573 is a deficient number, since it is larger than the sum of its proper divisors (3005287).

51089573 is a wasteful number, since it uses less digits than its factorization.

51089573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005286.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 51089573 is about 7147.6970417051. The cubic root of 51089573 is about 371.0599579064.

The spelling of 51089573 in words is "fifty-one million, eighty-nine thousand, five hundred seventy-three".