54187243 has 8 divisors (see below), whose sum is σ = 59924016. Its totient is φ = 48585600.

The previous prime is 54187213. The next prime is 54187247. The reversal of 54187243 is 34278145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54187243 - 2²⁵ = 20632811 is a prime.

It is a super-5 number, since 5×54187243⁵ (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54187199 and 54187208.

It is not an unprimeable number, because it can be changed into a prime (54187247) 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, 32938 + ... + 34543.

It is an arithmetic number, because the mean of its divisors is an integer number (7490502).

Almost surely, 2^54187243 is an apocalyptic number.

54187243 is a deficient number, since it is larger than the sum of its proper divisors (5736773).

54187243 is a wasteful number, since it uses less digits than its factorization.

54187243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67565.

The product of its digits is 26880, while the sum is 34.

The square root of 54187243 is about 7361.1984757918. The cubic root of 54187243 is about 378.4126839497.

The spelling of 54187243 in words is "fifty-four million, one hundred eighty-seven thousand, two hundred forty-three".