54002197 has 4 divisors (see below), whose sum is σ = 54497740. Its totient is φ = 53506656.

The previous prime is 54002189. The next prime is 54002213. The reversal of 54002197 is 79120045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13476241 + 40525956 = 3671^2 + 6366^2 .

It is a cyclic number.

It is not a de Polignac number, because 54002197 - 2³ = 54002189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54002167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247608 + ... + 247825.

It is an arithmetic number, because the mean of its divisors is an integer number (13624435).

Almost surely, 2^54002197 is an apocalyptic number.

It is an amenable number.

54002197 is a deficient number, since it is larger than the sum of its proper divisors (495543).

54002197 is a wasteful number, since it uses less digits than its factorization.

54002197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495542.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 54002197 is about 7348.6187137448. The cubic root of 54002197 is about 377.9814409111.

The spelling of 54002197 in words is "fifty-four million, two thousand, one hundred ninety-seven".