54455220454 has 16 divisors (see below), whose sum is σ = 86499605808. Its totient is φ = 25622459392.

The previous prime is 54455220439. The next prime is 54455220481. The reversal of 54455220454 is 45402255445.

It is a super-2 number, since 2×54455220454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149334 + ... + 362230.

It is an arithmetic number, because the mean of its divisors is an integer number (5406225363).

Almost surely, 2^54455220454 is an apocalyptic number.

54455220454 is a deficient number, since it is larger than the sum of its proper divisors (32044385354).

54455220454 is a wasteful number, since it uses less digits than its factorization.

54455220454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220439.

The product of its (nonzero) digits is 640000, while the sum is 40.

Adding to 54455220454 its reverse (45402255445), we get a palindrome (99857475899).

The spelling of 54455220454 in words is "fifty-four billion, four hundred fifty-five million, two hundred twenty thousand, four hundred fifty-four".