54369405 has 12 divisors (see below), whose sum is σ = 94240380. Its totient is φ = 28996992.

The previous prime is 54369397. The next prime is 54369421. The reversal of 54369405 is 50496345.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31069476 + 23299929 = 5574^2 + 4827^2 .

It is not a de Polignac number, because 54369405 - 2³ = 54369397 is a prime.

It is a super-3 number, since 3×54369405³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54369405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604060 + ... + 604149.

It is an arithmetic number, because the mean of its divisors is an integer number (7853365).

Almost surely, 2^54369405 is an apocalyptic number.

It is an amenable number.

54369405 is a deficient number, since it is larger than the sum of its proper divisors (39870975).

54369405 is a wasteful number, since it uses less digits than its factorization.

54369405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208220 (or 1208217 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 54369405 is about 7373.5612155864. The cubic root of 54369405 is about 378.8362480445.

It can be divided in two parts, 5436 and 9405, that added together give a palindrome (14841).

The spelling of 54369405 in words is "fifty-four million, three hundred sixty-nine thousand, four hundred five".