50001297408 has 360 divisors, whose sum is σ = 157915969120. Its totient is φ = 15765995520.

The previous prime is 50001297371. The next prime is 50001297443. The reversal of 50001297408 is 80479210005.

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 23 ways as a sum of consecutive naturals, for example, 75644598 + ... + 75645258.

Almost surely, 2^50001297408 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 50001297408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78957984560).

50001297408 is an abundant number, since it is smaller than the sum of its proper divisors (107914671712).

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

50001297408 is an frugal number, since it uses more digits than its factorization.

50001297408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 50001297408 in words is "fifty billion, one million, two hundred ninety-seven thousand, four hundred eight".