51223122455 has 32 divisors (see below), whose sum is σ = 63615907008. Its totient is φ = 39564288000.

The previous prime is 51223122451. The next prime is 51223122469. The reversal of 51223122455 is 55422132215.

It is not a de Polignac number, because 51223122455 - 2² = 51223122451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51223122451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31993655 + ... + 31995255.

It is an arithmetic number, because the mean of its divisors is an integer number (1987997094).

Almost surely, 2^51223122455 is an apocalyptic number.

51223122455 is a deficient number, since it is larger than the sum of its proper divisors (12392784553).

51223122455 is a wasteful number, since it uses less digits than its factorization.

51223122455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867.

The product of its digits is 24000, while the sum is 32.

The spelling of 51223122455 in words is "fifty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, four hundred fifty-five".