51485404 has 12 divisors (see below), whose sum is σ = 90942264. Its totient is φ = 25501904.

The previous prime is 51485303. The next prime is 51485417. The reversal of 51485404 is 40458415.

51485404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 59719 + ... + 60574.

It is an arithmetic number, because the mean of its divisors is an integer number (7578522).

Almost surely, 2^51485404 is an apocalyptic number.

It is an amenable number.

51485404 is a deficient number, since it is larger than the sum of its proper divisors (39456860).

51485404 is a wasteful number, since it uses less digits than its factorization.

51485404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120404 (or 120402 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 51485404 is about 7175.3330236303. Note that the first 3 decimals coincide. The cubic root of 51485404 is about 372.0157911360.

The spelling of 51485404 in words is "fifty-one million, four hundred eighty-five thousand, four hundred four".