54538131 has 4 divisors (see below), whose sum is σ = 72717512. Its totient is φ = 36358752.

The previous prime is 54538109. The next prime is 54538171. The reversal of 54538131 is 13183545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 54538131 - 2¹³ = 54529939 is a prime.

It is a super-2 number, since 2×54538131² = 5948815465946322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54538171) 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, 9089686 + ... + 9089691.

It is an arithmetic number, because the mean of its divisors is an integer number (18179378).

Almost surely, 2^54538131 is an apocalyptic number.

54538131 is a deficient number, since it is larger than the sum of its proper divisors (18179381).

54538131 is a wasteful number, since it uses less digits than its factorization.

54538131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18179380.

The product of its digits is 7200, while the sum is 30.

The square root of 54538131 is about 7384.9936357454. The cubic root of 54538131 is about 379.2277275141.

The spelling of 54538131 in words is "fifty-four million, five hundred thirty-eight thousand, one hundred thirty-one".