50591904 has 96 divisors (see below), whose sum is σ = 151248384. Its totient is φ = 14657280.

The previous prime is 50591899. The next prime is 50591923. The reversal of 50591904 is 40919505.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 23247 + ... + 25329.

It is an arithmetic number, because the mean of its divisors is an integer number (1575504).

Almost surely, 2^50591904 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 50591904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75624192).

50591904 is an abundant number, since it is smaller than the sum of its proper divisors (100656480).

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

50591904 is a wasteful number, since it uses less digits than its factorization.

50591904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 2122 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 50591904 is about 7112.7986053311. The cubic root of 50591904 is about 369.8511794973.

The spelling of 50591904 in words is "fifty million, five hundred ninety-one thousand, nine hundred four".