51620055022 has 16 divisors (see below), whose sum is σ = 78560259840. Its totient is φ = 25434552312.

The previous prime is 51620055017. The next prime is 51620055031. The reversal of 51620055022 is 22055002615.

51620055022 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 7 ways as a sum of consecutive naturals, for example, 229708 + ... + 394975.

It is an arithmetic number, because the mean of its divisors is an integer number (4910016240).

Almost surely, 2^51620055022 is an apocalyptic number.

51620055022 is a deficient number, since it is larger than the sum of its proper divisors (26940204818).

51620055022 is a wasteful number, since it uses less digits than its factorization.

51620055022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625287.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 51620055022 its reverse (22055002615), we get a palindrome (73675057637).

The spelling of 51620055022 in words is "fifty-one billion, six hundred twenty million, fifty-five thousand, twenty-two".