50997706020 has 144 divisors (see below), whose sum is σ = 164053693440. Its totient is φ = 12779025408.

The previous prime is 50997705971. The next prime is 50997706033. The reversal of 50997706020 is 2060779905.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1954621 + ... + 1980539.

It is an arithmetic number, because the mean of its divisors is an integer number (1139261760).

Almost surely, 2^50997706020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50997706020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82026846720).

50997706020 is an abundant number, since it is smaller than the sum of its proper divisors (113055987420).

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

50997706020 is a wasteful number, since it uses less digits than its factorization.

50997706020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26594 (or 26589 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The spelling of 50997706020 in words is "fifty billion, nine hundred ninety-seven million, seven hundred six thousand, twenty".