54545391 has 6 divisors (see below), whose sum is σ = 78787800. Its totient is φ = 36363588.

The previous prime is 54545389. The next prime is 54545419. The reversal of 54545391 is 19354545.

It is not a de Polignac number, because 54545391 - 2¹ = 54545389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54545291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3030291 + ... + 3030308.

It is an arithmetic number, because the mean of its divisors is an integer number (13131300).

Almost surely, 2^54545391 is an apocalyptic number.

54545391 is a deficient number, since it is larger than the sum of its proper divisors (24242409).

54545391 is a wasteful number, since it uses less digits than its factorization.

54545391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060605 (or 6060602 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 54545391 is about 7385.4851567111. The cubic root of 54545391 is about 379.2445540970.

The spelling of 54545391 in words is "fifty-four million, five hundred forty-five thousand, three hundred ninety-one".