51394802 has 8 divisors (see below), whose sum is σ = 77135916. Its totient is φ = 25682832.

The previous prime is 51394801. The next prime is 51394817. The reversal of 51394802 is 20849315.

It can be written as a sum of positive squares in 2 ways, for example, as 47596201 + 3798601 = 6899^2 + 1949^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51394801) 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, 2153 + ... + 10364.

Almost surely, 2^51394802 is an apocalyptic number.

51394802 is a deficient number, since it is larger than the sum of its proper divisors (25741114).

51394802 is a wasteful number, since it uses less digits than its factorization.

51394802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 51394802 is about 7169.0168084613. The cubic root of 51394802 is about 371.7974433936.

The spelling of 51394802 in words is "fifty-one million, three hundred ninety-four thousand, eight hundred two".