51224255005 has 16 divisors (see below), whose sum is σ = 76636808064. Its totient is φ = 31932002880.

The previous prime is 51224254943. The next prime is 51224255021. The reversal of 51224255005 is 50055242215.

It is a happy number.

It is not a de Polignac number, because 51224255005 - 2³¹ = 49076771357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66524622 + ... + 66525391.

It is an arithmetic number, because the mean of its divisors is an integer number (4789800504).

Almost surely, 2^51224255005 is an apocalyptic number.

51224255005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51224255005 is a deficient number, since it is larger than the sum of its proper divisors (25412553059).

51224255005 is a wasteful number, since it uses less digits than its factorization.

51224255005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133050036.

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 51224255005 in words is "fifty-one billion, two hundred twenty-four million, two hundred fifty-five thousand, five".