54803897 has 4 divisors (see below), whose sum is σ = 54924276. Its totient is φ = 54683520.

The previous prime is 54803891. The next prime is 54803899. The reversal of 54803897 is 79830845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79830845 = 5 ⋅15966169.

It can be written as a sum of positive squares in 2 ways, for example, as 33051001 + 21752896 = 5749^2 + 4664^2 .

It is a cyclic number.

It is not a de Polignac number, because 54803897 - 2¹⁰ = 54802873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54803891) 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, 59504 + ... + 60417.

It is an arithmetic number, because the mean of its divisors is an integer number (13731069).

Almost surely, 2^54803897 is an apocalyptic number.

It is an amenable number.

54803897 is a deficient number, since it is larger than the sum of its proper divisors (120379).

54803897 is a wasteful number, since it uses less digits than its factorization.

54803897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120378.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 54803897 is about 7402.9654193438. The cubic root of 54803897 is about 379.8427257751.

The spelling of 54803897 in words is "fifty-four million, eight hundred three thousand, eight hundred ninety-seven".