53450403 has 4 divisors (see below), whose sum is σ = 71267208. Its totient is φ = 35633600.

The previous prime is 53450387. The next prime is 53450437. The reversal of 53450403 is 30405435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53450403 - 2⁴ = 53450387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53450503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8908398 + ... + 8908403.

It is an arithmetic number, because the mean of its divisors is an integer number (17816802).

Almost surely, 2^53450403 is an apocalyptic number.

53450403 is a deficient number, since it is larger than the sum of its proper divisors (17816805).

53450403 is a wasteful number, since it uses less digits than its factorization.

53450403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17816804.

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

The square root of 53450403 is about 7310.9782519168. The cubic root of 53450403 is about 376.6896272148.

Adding to 53450403 its reverse (30405435), we get a palindrome (83855838).

The spelling of 53450403 in words is "fifty-three million, four hundred fifty thousand, four hundred three".