54537865 has 8 divisors (see below), whose sum is σ = 66181320. Its totient is φ = 43139712.

The previous prime is 54537863. The next prime is 54537871. The reversal of 54537865 is 56873545.

It can be written as a sum of positive squares in 4 ways, for example, as 2524921 + 52012944 = 1589^2 + 7212^2 .

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 54537865 - 2¹ = 54537863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54537863) 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, 60834 + ... + 61723.

It is an arithmetic number, because the mean of its divisors is an integer number (8272665).

Almost surely, 2^54537865 is an apocalyptic number.

It is an amenable number.

54537865 is a deficient number, since it is larger than the sum of its proper divisors (11643455).

54537865 is a wasteful number, since it uses less digits than its factorization.

54537865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122651.

The product of its digits is 504000, while the sum is 43.

The square root of 54537865 is about 7384.9756262292. The cubic root of 54537865 is about 379.2271109746.

The spelling of 54537865 in words is "fifty-four million, five hundred thirty-seven thousand, eight hundred sixty-five".