54836421 has 4 divisors (see below), whose sum is σ = 73115232. Its totient is φ = 36557612.

The previous prime is 54836401. The next prime is 54836423. The reversal of 54836421 is 12463845.

54836421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54836421 - 2⁵ = 54836389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54836423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9139401 + ... + 9139406.

It is an arithmetic number, because the mean of its divisors is an integer number (18278808).

Almost surely, 2^54836421 is an apocalyptic number.

It is an amenable number.

54836421 is a deficient number, since it is larger than the sum of its proper divisors (18278811).

54836421 is a wasteful number, since it uses less digits than its factorization.

54836421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18278810.

The product of its digits is 23040, while the sum is 33.

The square root of 54836421 is about 7405.1617808121. The cubic root of 54836421 is about 379.9178515868.

The spelling of 54836421 in words is "fifty-four million, eight hundred thirty-six thousand, four hundred twenty-one".