55453513553 has 4 divisors (see below), whose sum is σ = 55890155520. Its totient is φ = 55016871588.

The previous prime is 55453513541. The next prime is 55453513571. The reversal of 55453513553 is 35531535455.

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 55453513553 - 2⁴ = 55453513537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55453513853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 218320793 + ... + 218321046.

It is an arithmetic number, because the mean of its divisors is an integer number (13972538880).

Almost surely, 2^55453513553 is an apocalyptic number.

It is an amenable number.

55453513553 is a deficient number, since it is larger than the sum of its proper divisors (436641967).

55453513553 is a wasteful number, since it uses less digits than its factorization.

55453513553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436641966.

The product of its digits is 1687500, while the sum is 44.

The spelling of 55453513553 in words is "fifty-five billion, four hundred fifty-three million, five hundred thirteen thousand, five hundred fifty-three".