51228886 has 8 divisors (see below), whose sum is σ = 77032440. Its totient is φ = 25551408.

The previous prime is 51228869. The next prime is 51228887. The reversal of 51228886 is 68882215.

It is a happy number.

51228886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×51228886³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51228887) 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, 30496 + ... + 32131.

It is an arithmetic number, because the mean of its divisors is an integer number (9629055).

Almost surely, 2^51228886 is an apocalyptic number.

51228886 is a deficient number, since it is larger than the sum of its proper divisors (25803554).

51228886 is a wasteful number, since it uses less digits than its factorization.

51228886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63038.

The product of its digits is 61440, while the sum is 40.

The square root of 51228886 is about 7157.4357139970. The cubic root of 51228886 is about 371.3969252976.

The spelling of 51228886 in words is "fifty-one million, two hundred twenty-eight thousand, eight hundred eighty-six".