54002121 has 8 divisors (see below), whose sum is σ = 72083424. Its totient is φ = 35961120.

The previous prime is 54002111. The next prime is 54002153. The reversal of 54002121 is 12120045.

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

It is not a de Polignac number, because 54002121 - 2⁷ = 54001993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54002121.

It is not an unprimeable number, because it can be changed into a prime (54002101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6795 + ... + 12416.

It is an arithmetic number, because the mean of its divisors is an integer number (9010428).

Almost surely, 2^54002121 is an apocalyptic number.

It is an amenable number.

54002121 is a deficient number, since it is larger than the sum of its proper divisors (18081303).

54002121 is a wasteful number, since it uses less digits than its factorization.

54002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20151.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 54002121 is about 7348.6135427031. The cubic root of 54002121 is about 377.9812635936.

Adding to 54002121 its reverse (12120045), we get a palindrome (66122166).

The spelling of 54002121 in words is "fifty-four million, two thousand, one hundred twenty-one".