54535491 has 16 divisors (see below), whose sum is σ = 85046400. Its totient is φ = 34443144.

The previous prime is 54535489. The next prime is 54535519. The reversal of 54535491 is 19453545.

It is not a de Polignac number, because 54535491 - 2¹ = 54535489 is a prime.

It is a super-2 number, since 2×54535491² = 5948239557222162, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (54535471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52641 + ... + 53666.

It is an arithmetic number, because the mean of its divisors is an integer number (5315400).

Almost surely, 2^54535491 is an apocalyptic number.

54535491 is a deficient number, since it is larger than the sum of its proper divisors (30510909).

54535491 is a wasteful number, since it uses less digits than its factorization.

54535491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106335 (or 106329 counting only the distinct ones).

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

The square root of 54535491 is about 7384.8148927377. The cubic root of 54535491 is about 379.2216083865.

The spelling of 54535491 in words is "fifty-four million, five hundred thirty-five thousand, four hundred ninety-one".