54491405 has 8 divisors (see below), whose sum is σ = 65480184. Its totient is φ = 43532800.

The previous prime is 54491401. The next prime is 54491413. The reversal of 54491405 is 50419445.

It can be written as a sum of positive squares in 4 ways, for example, as 7678441 + 46812964 = 2771^2 + 6842^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54491405 - 2² = 54491401 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 (54491401) 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, 3356 + ... + 10965.

It is an arithmetic number, because the mean of its divisors is an integer number (8185023).

Almost surely, 2^54491405 is an apocalyptic number.

It is an amenable number.

54491405 is a deficient number, since it is larger than the sum of its proper divisors (10988779).

54491405 is a wasteful number, since it uses less digits than its factorization.

54491405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15087.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 54491405 is about 7381.8293803095. The cubic root of 54491405 is about 379.1193943938.

The spelling of 54491405 in words is "fifty-four million, four hundred ninety-one thousand, four hundred five".