54897971 has 8 divisors (see below), whose sum is σ = 56947440. Its totient is φ = 52883712.

The previous prime is 54897961. The next prime is 54897977. The reversal of 54897971 is 17979845.

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 54897971 - 2¹⁸ = 54635827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54897977) 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, 5606 + ... + 11883.

It is an arithmetic number, because the mean of its divisors is an integer number (7118430).

Almost surely, 2^54897971 is an apocalyptic number.

54897971 is a deficient number, since it is larger than the sum of its proper divisors (2049469).

54897971 is a wasteful number, since it uses less digits than its factorization.

54897971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17605.

The product of its digits is 635040, while the sum is 50.

The square root of 54897971 is about 7409.3165001908. The cubic root of 54897971 is about 380.0599420676.

The spelling of 54897971 in words is "fifty-four million, eight hundred ninety-seven thousand, nine hundred seventy-one".