54066405 has 8 divisors (see below), whose sum is σ = 86506272. Its totient is φ = 28835408.

The previous prime is 54066401. The next prime is 54066407. The reversal of 54066405 is 50466045.

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 54066405 - 2² = 54066401 is a prime.

It is a super-2 number, since 2×54066405² = 5846352299248050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54066401) 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, 1802199 + ... + 1802228.

It is an arithmetic number, because the mean of its divisors is an integer number (10813284).

Almost surely, 2^54066405 is an apocalyptic number.

It is an amenable number.

54066405 is a deficient number, since it is larger than the sum of its proper divisors (32439867).

54066405 is a wasteful number, since it uses less digits than its factorization.

54066405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604435.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 54066405 is about 7352.9861280979. The cubic root of 54066405 is about 378.1311867940.

It can be divided in two parts, 5406 and 6405, that added together give a palindrome (11811).

The spelling of 54066405 in words is "fifty-four million, sixty-six thousand, four hundred five".