53512165234500 has 96 divisors (see below), whose sum is σ = 178088485935360. Its totient is φ = 12231352051200.

The previous prime is 53512165234453. The next prime is 53512165234501. The reversal of 53512165234500 is 543256121535.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (53512165234501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2548187845 + ... + 2548208844.

It is an arithmetic number, because the mean of its divisors is an integer number (1855088395160).

Almost surely, 2^{53512165234500} is an apocalyptic number.

53512165234500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53512165234500 is an abundant number, since it is smaller than the sum of its proper divisors (124576320700860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53512165234500 is a wasteful number, since it uses less digits than its factorization.

53512165234500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096396718 (or 5096396706 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 53512165234500 in words is "fifty-three trillion, five hundred twelve billion, one hundred sixty-five million, two hundred thirty-four thousand, five hundred".