54545455 has 8 divisors (see below), whose sum is σ = 65692512. Its totient is φ = 43477728.

The previous prime is 54545419. The next prime is 54545459. The reversal of 54545455 is 55454545.

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 54545455 - 2⁷ = 54545327 is a prime.

It is a super-2 number, since 2×54545455² = 5950413322314050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54545459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18307 + ... + 21076.

It is an arithmetic number, because the mean of its divisors is an integer number (8211564).

Almost surely, 2^54545455 is an apocalyptic number.

54545455 is a deficient number, since it is larger than the sum of its proper divisors (11147057).

54545455 is a wasteful number, since it uses less digits than its factorization.

54545455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39665.

The product of its digits is 200000, while the sum is 37.

The square root of 54545455 is about 7385.4894895328. The cubic root of 54545455 is about 379.2447024239.

The spelling of 54545455 in words is "fifty-four million, five hundred forty-five thousand, four hundred fifty-five".