53545553 has 8 divisors (see below), whose sum is σ = 56471520. Its totient is φ = 50630400.

The previous prime is 53545519. The next prime is 53545559. The reversal of 53545553 is 35554535.

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 53545553 - 2¹⁴ = 53529169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53545559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8753 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (7058940).

Almost surely, 2^53545553 is an apocalyptic number.

It is an amenable number.

53545553 is a deficient number, since it is larger than the sum of its proper divisors (2925967).

53545553 is a wasteful number, since it uses less digits than its factorization.

53545553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407.

The product of its digits is 112500, while the sum is 35.

The square root of 53545553 is about 7317.4826955723. The cubic root of 53545553 is about 376.9130166806.

The spelling of 53545553 in words is "fifty-three million, five hundred forty-five thousand, five hundred fifty-three".