53009287812 has 240 divisors, whose sum is σ = 156951349632. Its totient is φ = 15478594560.

The previous prime is 53009287801. The next prime is 53009287829. The reversal of 53009287812 is 21878290035.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12688668 + ... + 12692844.

Almost surely, 2^53009287812 is an apocalyptic number.

53009287812 is a gapful number since it is divisible by the number (52) 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 53009287812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78475674816).

53009287812 is an abundant number, since it is smaller than the sum of its proper divisors (103942061820).

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

53009287812 is a wasteful number, since it uses less digits than its factorization.

53009287812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4349 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 53009287812 in words is "fifty-three billion, nine million, two hundred eighty-seven thousand, eight hundred twelve".