51452535320 has 16 divisors (see below), whose sum is σ = 115768204560. Its totient is φ = 20581014112.

The previous prime is 51452535313. The next prime is 51452535341. The reversal of 51452535320 is 2353525415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643156652 + ... + 643156731.

It is an arithmetic number, because the mean of its divisors is an integer number (7235512785).

Almost surely, 2^51452535320 is an apocalyptic number.

It is an amenable number.

51452535320 is an abundant number, since it is smaller than the sum of its proper divisors (64315669240).

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

51452535320 is a wasteful number, since it uses less digits than its factorization.

51452535320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286313394 (or 1286313390 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 51452535320 in words is "fifty-one billion, four hundred fifty-two million, five hundred thirty-five thousand, three hundred twenty".