51109016 has 32 divisors (see below), whose sum is σ = 110017440. Its totient is φ = 21804288.

The previous prime is 51108997. The next prime is 51109027. The reversal of 51109016 is 61090115.

51109016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51109016² = 5224263032976512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51108982 and 51109000.

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, 11090 + ... + 15006.

It is an arithmetic number, because the mean of its divisors is an integer number (3438045).

Almost surely, 2^51109016 is an apocalyptic number.

51109016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51109016 is an abundant number, since it is smaller than the sum of its proper divisors (58908424).

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

51109016 is a wasteful number, since it uses less digits than its factorization.

51109016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163 (or 4159 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 51109016 is about 7149.0570007519. The cubic root of 51109016 is about 371.1070229814.

The spelling of 51109016 in words is "fifty-one million, one hundred nine thousand, sixteen".