54545453 has 4 divisors (see below), whose sum is σ = 55045980. Its totient is φ = 54044928.

The previous prime is 54545419. The next prime is 54545459. The reversal of 54545453 is 35454545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36457444 + 18088009 = 6038^2 + 4253^2 .

It is a cyclic number.

It is not a de Polignac number, because 54545453 - 2⁶ = 54545389 is a prime.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250100 + ... + 250317.

It is an arithmetic number, because the mean of its divisors is an integer number (13761495).

Almost surely, 2^54545453 is an apocalyptic number.

It is an amenable number.

54545453 is a deficient number, since it is larger than the sum of its proper divisors (500527).

54545453 is a wasteful number, since it uses less digits than its factorization.

54545453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500526.

The product of its digits is 120000, while the sum is 35.

The square root of 54545453 is about 7385.4893541322. The cubic root of 54545453 is about 379.2446977887.

Adding to 54545453 its reverse (35454545), we get a palindrome (89999998).

The spelling of 54545453 in words is "fifty-four million, five hundred forty-five thousand, four hundred fifty-three".