54231989 has 32 divisors (see below), whose sum is σ = 69138432. Its totient is φ = 41472000.

The previous prime is 54231949. The next prime is 54232007. The reversal of 54231989 is 98913245.

It is a cyclic number.

It is not a de Polignac number, because 54231989 - 2¹² = 54227893 is a prime.

It is a super-2 number, since 2×54231989² = 5882217261792242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54231929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224909 + ... + 225149.

It is an arithmetic number, because the mean of its divisors is an integer number (2160576).

Almost surely, 2^54231989 is an apocalyptic number.

It is an amenable number.

54231989 is a deficient number, since it is larger than the sum of its proper divisors (14906443).

54231989 is a wasteful number, since it uses less digits than its factorization.

54231989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357.

The product of its digits is 77760, while the sum is 41.

The square root of 54231989 is about 7364.2371634814. The cubic root of 54231989 is about 378.5168154414.

The spelling of 54231989 in words is "fifty-four million, two hundred thirty-one thousand, nine hundred eighty-nine".