54421229 has 4 divisors (see below), whose sum is σ = 54443484. Its totient is φ = 54398976.

The previous prime is 54421217. The next prime is 54421231. The reversal of 54421229 is 92212445.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42276004 + 12145225 = 6502^2 + 3485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54421229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54424229) 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, 6932 + ... + 12525.

It is an arithmetic number, because the mean of its divisors is an integer number (13610871).

Almost surely, 2^54421229 is an apocalyptic number.

It is an amenable number.

54421229 is a deficient number, since it is larger than the sum of its proper divisors (22255).

54421229 is a wasteful number, since it uses less digits than its factorization.

54421229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22254.

The product of its digits is 5760, while the sum is 29.

The square root of 54421229 is about 7377.0745556758. The cubic root of 54421229 is about 378.9565765953.

The spelling of 54421229 in words is "fifty-four million, four hundred twenty-one thousand, two hundred twenty-nine".