50575021920 has 768 divisors, whose sum is σ = 191507742720. Its totient is φ = 12441600000.

The previous prime is 50575021907. The next prime is 50575021957. The reversal of 50575021920 is 2912057505.

50575021920 is a `hidden beast` number, since 50 + 575 + 0 + 2 + 19 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 334933845 + ... + 334933995.

It is an arithmetic number, because the mean of its divisors is an integer number (249359040).

Almost surely, 2^50575021920 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 50575021920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95753871360).

50575021920 is an abundant number, since it is smaller than the sum of its proper divisors (140932720800).

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

50575021920 is a wasteful number, since it uses less digits than its factorization.

50575021920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The spelling of 50575021920 in words is "fifty billion, five hundred seventy-five million, twenty-one thousand, nine hundred twenty".