51229120 has 28 divisors (see below), whose sum is σ = 121990104. Its totient is φ = 20491520.

The previous prime is 51229117. The next prime is 51229141. The reversal of 51229120 is 2192215.

It is a junction number, because it is equal to n+sod(n) for n = 51229091 and 51229100.

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 3 ways as a sum of consecutive naturals, for example, 79726 + ... + 80365.

Almost surely, 2^51229120 is an apocalyptic number.

It is an amenable number.

51229120 is an abundant number, since it is smaller than the sum of its proper divisors (70760984).

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

51229120 is a wasteful number, since it uses less digits than its factorization.

51229120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160108 (or 160098 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 51229120 is about 7157.4520606149. The cubic root of 51229120 is about 371.3974907777.

The spelling of 51229120 in words is "fifty-one million, two hundred twenty-nine thousand, one hundred twenty".