51493150526722 has 32 divisors (see below), whose sum is σ = 78203176427520. Its totient is φ = 25427038205520.

The previous prime is 51493150526663. The next prime is 51493150526723. The reversal of 51493150526722 is 22762505139415.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51493150526722.

It is not an unprimeable number, because it can be changed into a prime (51493150526723) 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, 89472679 + ... + 90046357.

It is an arithmetic number, because the mean of its divisors is an integer number (2443849263360).

Almost surely, 2^{51493150526722} is an apocalyptic number.

51493150526722 is a deficient number, since it is larger than the sum of its proper divisors (26710025900798).

51493150526722 is a wasteful number, since it uses less digits than its factorization.

51493150526722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575086.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 51493150526722 in words is "fifty-one trillion, four hundred ninety-three billion, one hundred fifty million, five hundred twenty-six thousand, seven hundred twenty-two".