50533440 has 56 divisors (see below), whose sum is σ = 160446720. Its totient is φ = 13475328.

The previous prime is 50533429. The next prime is 50533451. The reversal of 50533440 is 4433505.

It is a happy number.

50533440 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (50533429) and next prime (50533451).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 50533440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25360 + ... + 27279.

It is an arithmetic number, because the mean of its divisors is an integer number (2865120).

Almost surely, 2^50533440 is an apocalyptic number.

It is an amenable number.

50533440 is an abundant number, since it is smaller than the sum of its proper divisors (109913280).

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

50533440 is a wasteful number, since it uses less digits than its factorization.

50533440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52659 (or 52649 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 50533440 is about 7108.6876425962. The cubic root of 50533440 is about 369.7086579199.

Adding to 50533440 its reverse (4433505), we get a palindrome (54966945).

The spelling of 50533440 in words is "fifty million, five hundred thirty-three thousand, four hundred forty".