54121403 has 4 divisors (see below), whose sum is σ = 61853040. Its totient is φ = 46389768.

The previous prime is 54121357. The next prime is 54121409. The reversal of 54121403 is 30412145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30412145 = 5 ⋅6082429.

It is a cyclic number.

It is not a de Polignac number, because 54121403 - 2⁶ = 54121339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54121409) 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 3 ways as a sum of consecutive naturals, for example, 3865808 + ... + 3865821.

It is an arithmetic number, because the mean of its divisors is an integer number (15463260).

Almost surely, 2^54121403 is an apocalyptic number.

54121403 is a deficient number, since it is larger than the sum of its proper divisors (7731637).

54121403 is an equidigital number, since it uses as much as digits as its factorization.

54121403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7731636.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 54121403 is about 7356.7250186479. The cubic root of 54121403 is about 378.2593588779.

Adding to 54121403 its reverse (30412145), we get a palindrome (84533548).

The spelling of 54121403 in words is "fifty-four million, one hundred twenty-one thousand, four hundred three".