51012222510 has 64 divisors (see below), whose sum is σ = 123807942720. Its totient is φ = 13450444800.

The previous prime is 51012222487. The next prime is 51012222563. The reversal of 51012222510 is 1522221015.

51012222510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2319124 + ... + 2341016.

It is an arithmetic number, because the mean of its divisors is an integer number (1934499105).

Almost surely, 2^51012222510 is an apocalyptic number.

51012222510 is an abundant number, since it is smaller than the sum of its proper divisors (72795720210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51012222510 is a wasteful number, since it uses less digits than its factorization.

51012222510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22773.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 51012222510 its reverse (1522221015), we get a palindrome (52534443525).

The spelling of 51012222510 in words is "fifty-one billion, twelve million, two hundred twenty-two thousand, five hundred ten".