51022520206 has 32 divisors (see below), whose sum is σ = 92628921600. Its totient is φ = 20576820096.

The previous prime is 51022520203. The next prime is 51022520207. The reversal of 51022520206 is 60202522015.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51022520203) 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, 1593745 + ... + 1625443.

It is an arithmetic number, because the mean of its divisors is an integer number (2894653800).

Almost surely, 2^51022520206 is an apocalyptic number.

51022520206 is a deficient number, since it is larger than the sum of its proper divisors (41606401394).

51022520206 is a wasteful number, since it uses less digits than its factorization.

51022520206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38488.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 51022520206 in words is "fifty-one billion, twenty-two million, five hundred twenty thousand, two hundred six".