50061265920 has 264 divisors, whose sum is σ = 179889934224. Its totient is φ = 13349339136.

The previous prime is 50061265907. The next prime is 50061265927. The reversal of 50061265920 is 2956216005.

50061265920 is a `hidden beast` number, since 5 + 0 + 0 + 61 + 2 + 6 + 592 + 0 = 666.

It is a super-2 number, since 2×50061265920² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (50061265927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224042 + ... + 1264278.

It is an arithmetic number, because the mean of its divisors is an integer number (681401266).

Almost surely, 2^50061265920 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 50061265920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89944967112).

50061265920 is an abundant number, since it is smaller than the sum of its proper divisors (129828668304).

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

50061265920 is an equidigital number, since it uses as much as digits as its factorization.

50061265920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40277 (or 40247 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 50061265920 in words is "fifty billion, sixty-one million, two hundred sixty-five thousand, nine hundred twenty".