51505542022 has 32 divisors (see below), whose sum is σ = 89609994144. Its totient is φ = 21942988800.

The previous prime is 51505541963. The next prime is 51505542031. The reversal of 51505542022 is 22024550515.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195583 + ... + 375850.

It is an arithmetic number, because the mean of its divisors is an integer number (2800312317).

Almost surely, 2^51505542022 is an apocalyptic number.

51505542022 is a deficient number, since it is larger than the sum of its proper divisors (38104452122).

51505542022 is a wasteful number, since it uses less digits than its factorization.

51505542022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571704.

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

The spelling of 51505542022 in words is "fifty-one billion, five hundred five million, five hundred forty-two thousand, twenty-two".