53155543 has 12 divisors (see below), whose sum is σ = 63152352. Its totient is φ = 44590560.

The previous prime is 53155523. The next prime is 53155547. The reversal of 53155543 is 34555135.

It is not a de Polignac number, because 53155543 - 2¹⁷ = 53024471 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 (53155547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9238 + ... + 13843.

It is an arithmetic number, because the mean of its divisors is an integer number (5262696).

Almost surely, 2^53155543 is an apocalyptic number.

53155543 is a deficient number, since it is larger than the sum of its proper divisors (9996809).

53155543 is a wasteful number, since it uses less digits than its factorization.

53155543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23142 (or 23135 counting only the distinct ones).

The product of its digits is 22500, while the sum is 31.

The square root of 53155543 is about 7290.7848000061. The cubic root of 53155543 is about 375.9956781418.

The spelling of 53155543 in words is "fifty-three million, one hundred fifty-five thousand, five hundred forty-three".