50811840 has 112 divisors (see below), whose sum is σ = 179283360. Its totient is φ = 13547520.

The previous prime is 50811797. The next prime is 50811851. The reversal of 50811840 is 4811805.

50811840 is a `hidden beast` number, since 508 + 118 + 40 = 666.

50811840 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5700 + ... + 11580.

Almost surely, 2^50811840 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 50811840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89641680).

50811840 is an abundant number, since it is smaller than the sum of its proper divisors (128471520).

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

50811840 is a wasteful number, since it uses less digits than its factorization.

50811840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907 (or 5891 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 50811840 is about 7128.2424201201. The cubic root of 50811840 is about 370.3863507574.

The spelling of 50811840 in words is "fifty million, eight hundred eleven thousand, eight hundred forty".