51222545205 has 16 divisors (see below), whose sum is σ = 88260385920. Its totient is φ = 25217252928.

The previous prime is 51222545203. The next prime is 51222545207. The reversal of 51222545205 is 50254522215.

It is a happy number.

51222545205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51222545203) and next prime (51222545207).

It is not a de Polignac number, because 51222545205 - 2¹ = 51222545203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222545203) 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, 131339665 + ... + 131340054.

It is an arithmetic number, because the mean of its divisors is an integer number (5516274120).

Almost surely, 2^51222545205 is an apocalyptic number.

It is an amenable number.

51222545205 is a deficient number, since it is larger than the sum of its proper divisors (37037840715).

51222545205 is a wasteful number, since it uses less digits than its factorization.

51222545205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262679740.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 51222545205 in words is "fifty-one billion, two hundred twenty-two million, five hundred forty-five thousand, two hundred five".