53213055612500 has 144 divisors (see below), whose sum is σ = 140025399050880. Its totient is φ = 17284240080000.

The previous prime is 53213055612461. The next prime is 53213055612559. The reversal of 53213055612500 is 521655031235.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14341427 + ... + 17666426.

It is an arithmetic number, because the mean of its divisors is an integer number (972398604520).

Almost surely, 2^{53213055612500} is an apocalyptic number.

53213055612500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53213055612500 is an abundant number, since it is smaller than the sum of its proper divisors (86812343438380).

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

53213055612500 is a wasteful number, since it uses less digits than its factorization.

53213055612500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32007908 (or 32007886 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 53213055612500 in words is "fifty-three trillion, two hundred thirteen billion, fifty-five million, six hundred twelve thousand, five hundred".