51553910 has 16 divisors (see below), whose sum is σ = 92972016. Its totient is φ = 20582688.

The previous prime is 51553907. The next prime is 51553921. The reversal of 51553910 is 1935515.

It is a happy number.

51553910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052 + ... + 10208.

It is an arithmetic number, because the mean of its divisors is an integer number (5810751).

Almost surely, 2^51553910 is an apocalyptic number.

51553910 is a deficient number, since it is larger than the sum of its proper divisors (41418106).

51553910 is a wasteful number, since it uses less digits than its factorization.

51553910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9727.

The product of its (nonzero) digits is 3375, while the sum is 29.

The square root of 51553910 is about 7180.1051524334. The cubic root of 51553910 is about 372.1807182587.

The spelling of 51553910 in words is "fifty-one million, five hundred fifty-three thousand, nine hundred ten".