54021641 has 8 divisors (see below), whose sum is σ = 57746304. Its totient is φ = 50411680.

The previous prime is 54021637. The next prime is 54021647. The reversal of 54021641 is 14612045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54021641 - 2² = 54021637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54021647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27701 + ... + 29586.

It is an arithmetic number, because the mean of its divisors is an integer number (7218288).

Almost surely, 2^54021641 is an apocalyptic number.

It is an amenable number.

54021641 is a deficient number, since it is larger than the sum of its proper divisors (3724663).

54021641 is a wasteful number, since it uses less digits than its factorization.

54021641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57351.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 54021641 is about 7349.9415643936. The cubic root of 54021641 is about 378.0268007275.

Adding to 54021641 its reverse (14612045), we get a palindrome (68633686).

The spelling of 54021641 in words is "fifty-four million, twenty-one thousand, six hundred forty-one".