51204486 has 32 divisors (see below), whose sum is σ = 109359360. Its totient is φ = 15944544.

The previous prime is 51204427. The next prime is 51204497. The reversal of 51204486 is 68440215.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1620 + ... + 10248.

It is an arithmetic number, because the mean of its divisors is an integer number (3417480).

Almost surely, 2^51204486 is an apocalyptic number.

51204486 is an abundant number, since it is smaller than the sum of its proper divisors (58154874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51204486 is a wasteful number, since it uses less digits than its factorization.

51204486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 51204486 is about 7155.7309899129. The cubic root of 51204486 is about 371.3379512512.

The spelling of 51204486 in words is "fifty-one million, two hundred four thousand, four hundred eighty-six".