51011056 has 20 divisors (see below), whose sum is σ = 103131792. Its totient is φ = 24396416.

The previous prime is 51011047. The next prime is 51011057. The reversal of 51011056 is 65011015.

51011056 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 not an unprimeable number, because it can be changed into a prime (51011057) by changing a digit.

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, 68941 + ... + 69676.

Almost surely, 2^51011056 is an apocalyptic number.

It is an amenable number.

51011056 is an abundant number, since it is smaller than the sum of its proper divisors (52120736).

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

51011056 is a wasteful number, since it uses less digits than its factorization.

51011056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138648 (or 138642 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 51011056 is about 7142.2024614260. The cubic root of 51011056 is about 370.8697726372.

The spelling of 51011056 in words is "fifty-one million, eleven thousand, fifty-six".