53112821135 has 12 divisors (see below), whose sum is σ = 70056250824. Its totient is φ = 38627505840.

The previous prime is 53112821077. The next prime is 53112821137.

53112821135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53112821135 - 2³² = 48817853839 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 (53112821137) 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, 43894289 + ... + 43895498.

It is an arithmetic number, because the mean of its divisors is an integer number (5838020902).

Almost surely, 2^53112821135 is an apocalyptic number.

53112821135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53112821135 is a deficient number, since it is larger than the sum of its proper divisors (16943429689).

53112821135 is a wasteful number, since it uses less digits than its factorization.

53112821135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87789814 (or 87789803 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The spelling of 53112821135 in words is "fifty-three billion, one hundred twelve million, eight hundred twenty-one thousand, one hundred thirty-five".