53403450 has 24 divisors (see below), whose sum is σ = 132440928. Its totient is φ = 14240880.

The previous prime is 53403419. The next prime is 53403451. The reversal of 53403450 is 5430435.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53403450.

It is not an unprimeable number, because it can be changed into a prime (53403451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177862 + ... + 178161.

It is an arithmetic number, because the mean of its divisors is an integer number (5518372).

Almost surely, 2^53403450 is an apocalyptic number.

53403450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53403450 is an abundant number, since it is smaller than the sum of its proper divisors (79037478).

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

53403450 is a wasteful number, since it uses less digits than its factorization.

53403450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356038 (or 356033 counting only the distinct ones).

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

The square root of 53403450 is about 7307.7664166283. The cubic root of 53403450 is about 376.5792950906.

Adding to 53403450 its reverse (5430435), we get a palindrome (58833885).

The spelling of 53403450 in words is "fifty-three million, four hundred three thousand, four hundred fifty".