54971197 has 4 divisors (see below), whose sum is σ = 55231936. Its totient is φ = 54710460.

The previous prime is 54971179. The next prime is 54971249. The reversal of 54971197 is 79117945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54971197 is a prime.

It is a super-2 number, since 2×54971197² = 6043664999225618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54971107) 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, 130053 + ... + 130474.

It is an arithmetic number, because the mean of its divisors is an integer number (13807984).

Almost surely, 2^54971197 is an apocalyptic number.

It is an amenable number.

54971197 is a deficient number, since it is larger than the sum of its proper divisors (260739).

54971197 is a wasteful number, since it uses less digits than its factorization.

54971197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260738.

The product of its digits is 79380, while the sum is 43.

The square root of 54971197 is about 7414.2563349267. The cubic root of 54971197 is about 380.2288487632.

The spelling of 54971197 in words is "fifty-four million, nine hundred seventy-one thousand, one hundred ninety-seven".