53503011553 has 16 divisors (see below), whose sum is σ = 54802915200. Its totient is φ = 52219157760.

The previous prime is 53503011533. The next prime is 53503011571. The reversal of 53503011553 is 35511030535.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53503011553 - 2⁹ = 53503011041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53503011503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11521050 + ... + 11525692.

It is an arithmetic number, because the mean of its divisors is an integer number (3425182200).

Almost surely, 2^53503011553 is an apocalyptic number.

It is an amenable number.

53503011553 is a deficient number, since it is larger than the sum of its proper divisors (1299903647).

53503011553 is a wasteful number, since it uses less digits than its factorization.

53503011553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312.

The product of its (nonzero) digits is 16875, while the sum is 31.

The spelling of 53503011553 in words is "fifty-three billion, five hundred three million, eleven thousand, five hundred fifty-three".