53453553 has 4 divisors (see below), whose sum is σ = 71271408. Its totient is φ = 35635700.

The previous prime is 53453539. The next prime is 53453563. The reversal of 53453553 is 35535435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53453553 - 2⁴ = 53453537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53453513) 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, 8908923 + ... + 8908928.

It is an arithmetic number, because the mean of its divisors is an integer number (17817852).

Almost surely, 2^53453553 is an apocalyptic number.

It is an amenable number.

53453553 is a deficient number, since it is larger than the sum of its proper divisors (17817855).

53453553 is a wasteful number, since it uses less digits than its factorization.

53453553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17817854.

The product of its digits is 67500, while the sum is 33.

The square root of 53453553 is about 7311.1936781896. The cubic root of 53453553 is about 376.6970269034.

Adding to 53453553 its reverse (35535435), we get a palindrome (88988988).

The spelling of 53453553 in words is "fifty-three million, four hundred fifty-three thousand, five hundred fifty-three".