53015189506840 has 192 divisors, whose sum is σ = 134306852914080. Its totient is φ = 18809754163200.

The previous prime is 53015189506787. The next prime is 53015189506843. The reversal of 53015189506840 is 4860598151035.

It is a super-2 number, since 2×53015189506840² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015189506843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194872510 + ... + 195144370.

Almost surely, 2^{53015189506840} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53015189506840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67153426457040).

53015189506840 is an abundant number, since it is smaller than the sum of its proper divisors (81291663407240).

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

53015189506840 is a wasteful number, since it uses less digits than its factorization.

53015189506840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272874 (or 272859 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 53015189506840 in words is "fifty-three trillion, fifteen billion, one hundred eighty-nine million, five hundred six thousand, eight hundred forty".