54253989 has 8 divisors (see below), whose sum is σ = 80376320. Its totient is φ = 36169308.

The previous prime is 54253963. The next prime is 54254023. The reversal of 54253989 is 98935245.

It is not a de Polignac number, because 54253989 - 2⁵ = 54253957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54253909) 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, 1004677 + ... + 1004730.

It is an arithmetic number, because the mean of its divisors is an integer number (10047040).

Almost surely, 2^54253989 is an apocalyptic number.

It is an amenable number.

54253989 is a deficient number, since it is larger than the sum of its proper divisors (26122331).

54253989 is a wasteful number, since it uses less digits than its factorization.

54253989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009416 (or 2009410 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 54253989 is about 7365.7307173152. The cubic root of 54253989 is about 378.5679921504.

The spelling of 54253989 in words is "fifty-four million, two hundred fifty-three thousand, nine hundred eighty-nine".