53666707500 has 360 divisors, whose sum is σ = 195332673536. Its totient is φ = 12165552000.

The previous prime is 53666707459. The next prime is 53666707529. The reversal of 53666707500 is 570766635.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 20001159 + ... + 20003841.

Almost surely, 2^53666707500 is an apocalyptic number.

53666707500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53666707500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97666336768).

53666707500 is an abundant number, since it is smaller than the sum of its proper divisors (141665966036).

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

53666707500 is a wasteful number, since it uses less digits than its factorization.

53666707500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The spelling of 53666707500 in words is "fifty-three billion, six hundred sixty-six million, seven hundred seven thousand, five hundred".