54636421 has 6 divisors (see below), whose sum is σ = 63556710. Its totient is φ = 46831176.

The previous prime is 54636389. The next prime is 54636427. The reversal of 54636421 is 12463645.

54636421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48804196 + 5832225 = 6986^2 + 2415^2 .

It is not a de Polignac number, because 54636421 - 2⁵ = 54636389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54636427) 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 5 ways as a sum of consecutive naturals, for example, 557466 + ... + 557563.

It is an arithmetic number, because the mean of its divisors is an integer number (10592785).

Almost surely, 2^54636421 is an apocalyptic number.

It is an amenable number.

54636421 is a deficient number, since it is larger than the sum of its proper divisors (8920289).

54636421 is a wasteful number, since it uses less digits than its factorization.

54636421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115043 (or 1115036 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 54636421 is about 7391.6453513409. The cubic root of 54636421 is about 379.4554087274.

The spelling of 54636421 in words is "fifty-four million, six hundred thirty-six thousand, four hundred twenty-one".