54409232421 has 24 divisors (see below), whose sum is σ = 80279521920. Its totient is φ = 35493869376.

The previous prime is 54409232389. The next prime is 54409232467. The reversal of 54409232421 is 12423290445.

It is a happy number.

54409232421 is a `hidden beast` number, since 5 + 4 + 409 + 2 + 3 + 242 + 1 = 666.

It is not a de Polignac number, because 54409232421 - 2⁵ = 54409232389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54409232021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2790121 + ... + 2809553.

It is an arithmetic number, because the mean of its divisors is an integer number (3344980080).

Almost surely, 2^54409232421 is an apocalyptic number.

It is an amenable number.

54409232421 is a deficient number, since it is larger than the sum of its proper divisors (25870289499).

54409232421 is a wasteful number, since it uses less digits than its factorization.

54409232421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26105 (or 26102 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 54409232421 in words is "fifty-four billion, four hundred nine million, two hundred thirty-two thousand, four hundred twenty-one".