54538761 has 4 divisors (see below), whose sum is σ = 72718352. Its totient is φ = 36359172.

The previous prime is 54538747. The next prime is 54538789. The reversal of 54538761 is 16783545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-54538761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54538711) 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, 9089791 + ... + 9089796.

It is an arithmetic number, because the mean of its divisors is an integer number (18179588).

Almost surely, 2^54538761 is an apocalyptic number.

It is an amenable number.

54538761 is a deficient number, since it is larger than the sum of its proper divisors (18179591).

54538761 is a wasteful number, since it uses less digits than its factorization.

54538761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18179590.

The product of its digits is 100800, while the sum is 39.

The square root of 54538761 is about 7385.0362896874. The cubic root of 54538761 is about 379.2291877313.

The spelling of 54538761 in words is "fifty-four million, five hundred thirty-eight thousand, seven hundred sixty-one".