50998737240 has 640 divisors, whose sum is σ = 202923040320. Its totient is φ = 11346739200.

The previous prime is 50998737239. The next prime is 50998737259. The reversal of 50998737240 is 4273789905.

50998737240 is a `hidden beast` number, since 509 + 9 + 87 + 37 + 24 + 0 = 666.

It is a Cunningham number, because it is equal to 225829²-1.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 24840054 + ... + 24842106.

Almost surely, 2^50998737240 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 50998737240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101461520160).

50998737240 is an abundant number, since it is smaller than the sum of its proper divisors (151924303080).

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

50998737240 is a wasteful number, since it uses less digits than its factorization.

50998737240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145 (or 2132 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 50998737240 in words is "fifty billion, nine hundred ninety-eight million, seven hundred thirty-seven thousand, two hundred forty".