53127687553 has 4 divisors (see below), whose sum is σ = 53189250048. Its totient is φ = 53066125060.

The previous prime is 53127687523. The next prime is 53127687559. The reversal of 53127687553 is 35578672135.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35578672135 = 5 ⋅7115734427.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53127687553 is a prime.

It is a super-3 number, since 3×53127687553³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53127687553.

It is not an unprimeable number, because it can be changed into a prime (53127687559) 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, 30779953 + ... + 30781678.

It is an arithmetic number, because the mean of its divisors is an integer number (13297312512).

Almost surely, 2^53127687553 is an apocalyptic number.

It is an amenable number.

53127687553 is a deficient number, since it is larger than the sum of its proper divisors (61562495).

53127687553 is an equidigital number, since it uses as much as digits as its factorization.

53127687553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61562494.

The product of its digits is 5292000, while the sum is 52.

The spelling of 53127687553 in words is "fifty-three billion, one hundred twenty-seven million, six hundred eighty-seven thousand, five hundred fifty-three".