51394089 has 16 divisors (see below), whose sum is σ = 69350400. Its totient is φ = 33853440.

The previous prime is 51394067. The next prime is 51394093. The reversal of 51394089 is 98049315.

It is not a de Polignac number, because 51394089 - 2¹³ = 51385897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51394289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147087 + ... + 147435.

It is an arithmetic number, because the mean of its divisors is an integer number (4334400).

Almost surely, 2^51394089 is an apocalyptic number.

It is an amenable number.

51394089 is a deficient number, since it is larger than the sum of its proper divisors (17956311).

51394089 is a wasteful number, since it uses less digits than its factorization.

51394089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 51394089 is about 7168.9670804098. The cubic root of 51394089 is about 371.7957240706.

The spelling of 51394089 in words is "fifty-one million, three hundred ninety-four thousand, eighty-nine".