51228459853 has 16 divisors (see below), whose sum is σ = 54342553600. Its totient is φ = 48207312000.

The previous prime is 51228459811. The next prime is 51228459859. The reversal of 51228459853 is 35895482215.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51228459853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51228459853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51228459859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053348 + ... + 2078146.

It is an arithmetic number, because the mean of its divisors is an integer number (3396409600).

Almost surely, 2^51228459853 is an apocalyptic number.

It is an amenable number.

51228459853 is a deficient number, since it is larger than the sum of its proper divisors (3114093747).

51228459853 is a wasteful number, since it uses less digits than its factorization.

51228459853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668.

The product of its digits is 3456000, while the sum is 52.

The spelling of 51228459853 in words is "fifty-one billion, two hundred twenty-eight million, four hundred fifty-nine thousand, eight hundred fifty-three".