54242121 has 12 divisors (see below), whose sum is σ = 76828592. Its totient is φ = 34033728.

The previous prime is 54242117. The next prime is 54242141. The reversal of 54242121 is 12124245.

It is not a de Polignac number, because 54242121 - 2² = 54242117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54242141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30415 + ... + 32148.

Almost surely, 2^54242121 is an apocalyptic number.

54242121 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54242121 is a deficient number, since it is larger than the sum of its proper divisors (22586471).

54242121 is a wasteful number, since it uses less digits than its factorization.

54242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62600 (or 62583 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 54242121 is about 7364.9250505351. The cubic root of 54242121 is about 378.5403863611.

Adding to 54242121 its reverse (12124245), we get a palindrome (66366366).

The spelling of 54242121 in words is "fifty-four million, two hundred forty-two thousand, one hundred twenty-one".