54402403 has 4 divisors (see below), whose sum is σ = 59348088. Its totient is φ = 49456720.

The previous prime is 54402389. The next prime is 54402409. The reversal of 54402403 is 30420445.

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 54402403 - 2²⁵ = 20847971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54402409) 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, 2472826 + ... + 2472847.

It is an arithmetic number, because the mean of its divisors is an integer number (14837022).

Almost surely, 2^54402403 is an apocalyptic number.

54402403 is a deficient number, since it is larger than the sum of its proper divisors (4945685).

54402403 is a wasteful number, since it uses less digits than its factorization.

54402403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945684.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 54402403 is about 7375.7984652511. The cubic root of 54402403 is about 378.9128739235.

Adding to 54402403 its reverse (30420445), we get a palindrome (84822848).

The spelling of 54402403 in words is "fifty-four million, four hundred two thousand, four hundred three".