50531404 has 48 divisors (see below), whose sum is σ = 110799360. Its totient is φ = 19589760.

The previous prime is 50531401. The next prime is 50531423. The reversal of 50531404 is 40413505.

It is a super-2 number, since 2×50531404² = 5106845580422432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (50531401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110344 + ... + 110800.

It is an arithmetic number, because the mean of its divisors is an integer number (2308320).

Almost surely, 2^50531404 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 50531404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55399680).

50531404 is an abundant number, since it is smaller than the sum of its proper divisors (60267956).

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

50531404 is a wasteful number, since it uses less digits than its factorization.

50531404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50531404 is about 7108.5444360994. The cubic root of 50531404 is about 369.7036926471.

Adding to 50531404 its reverse (40413505), we get a palindrome (90944909).

The spelling of 50531404 in words is "fifty million, five hundred thirty-one thousand, four hundred four".