54090402 has 16 divisors (see below), whose sum is σ = 108780672. Its totient is φ = 17930160.

The previous prime is 54090383. The next prime is 54090419. The reversal of 54090402 is 20409045.

54090402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23818 + ... + 25989.

It is an arithmetic number, because the mean of its divisors is an integer number (6798792).

Almost surely, 2^54090402 is an apocalyptic number.

54090402 is an abundant number, since it is smaller than the sum of its proper divisors (54690270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54090402 is a wasteful number, since it uses less digits than its factorization.

54090402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49993.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 54090402 is about 7354.6177330980. The cubic root of 54090402 is about 378.1871221568.

Adding to 54090402 its reverse (20409045), we get a palindrome (74499447).

The spelling of 54090402 in words is "fifty-four million, ninety thousand, four hundred two".