54497997 has 12 divisors (see below), whose sum is σ = 79222780. Its totient is φ = 36099648.

The previous prime is 54497987. The next prime is 54497999. The reversal of 54497997 is 79979445.

54497997 is a `hidden beast` number, since 544 + 9 + 7 + 9 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25918281 + 28579716 = 5091^2 + 5346^2 .

It is not a de Polignac number, because 54497997 - 2¹⁴ = 54481613 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 (54497999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17872 + ... + 20697.

Almost surely, 2^54497997 is an apocalyptic number.

It is an amenable number.

54497997 is a deficient number, since it is larger than the sum of its proper divisors (24724783).

54497997 is a wasteful number, since it uses less digits than its factorization.

54497997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38732 (or 38729 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 54497997 is about 7382.2758685923. The cubic root of 54497997 is about 379.1346815403.

The spelling of 54497997 in words is "fifty-four million, four hundred ninety-seven thousand, nine hundred ninety-seven".