54315405 has 24 divisors (see below), whose sum is σ = 97395480. Its totient is φ = 27968640.

The previous prime is 54315403. The next prime is 54315421. The reversal of 54315405 is 50451345.

It can be written as a sum of positive squares in 4 ways, for example, as 4485924 + 49829481 = 2118^2 + 7059^2 .

It is not a de Polignac number, because 54315405 - 2¹ = 54315403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54315403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19506 + ... + 22115.

It is an arithmetic number, because the mean of its divisors is an integer number (4058145).

Almost surely, 2^54315405 is an apocalyptic number.

It is an amenable number.

54315405 is a deficient number, since it is larger than the sum of its proper divisors (43080075).

54315405 is a wasteful number, since it uses less digits than its factorization.

54315405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41661 (or 41658 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 54315405 is about 7369.8985746074. The cubic root of 54315405 is about 378.7107857319.

The spelling of 54315405 in words is "fifty-four million, three hundred fifteen thousand, four hundred five".