51223533763 has 4 divisors (see below), whose sum is σ = 51226135048. Its totient is φ = 51220932480.

The previous prime is 51223533761. The next prime is 51223533773. The reversal of 51223533763 is 36733532215.

51223533763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36733532215 = 5 ⋅7346706443.

It is a cyclic number.

It is not a de Polignac number, because 51223533763 - 2¹ = 51223533761 is a prime.

It is a super-2 number, since 2×51223533763² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51223533761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270878 + ... + 1310563.

It is an arithmetic number, because the mean of its divisors is an integer number (12806533762).

Almost surely, 2^51223533763 is an apocalyptic number.

51223533763 is a deficient number, since it is larger than the sum of its proper divisors (2601285).

51223533763 is a wasteful number, since it uses less digits than its factorization.

51223533763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601284.

The product of its digits is 340200, while the sum is 40.

The spelling of 51223533763 in words is "fifty-one billion, two hundred twenty-three million, five hundred thirty-three thousand, seven hundred sixty-three".