53320013502 has 256 divisors, whose sum is σ = 132477616128. Its totient is φ = 13991201280.

The previous prime is 53320013501. The next prime is 53320013503. The reversal of 53320013502 is 20531002335.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53320013501) and next prime (53320013503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53320013501) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 419842563 + ... + 419842689.

It is an arithmetic number, because the mean of its divisors is an integer number (517490688).

Almost surely, 2^53320013502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53320013502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66238808064).

53320013502 is an abundant number, since it is smaller than the sum of its proper divisors (79157602626).

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

53320013502 is a wasteful number, since it uses less digits than its factorization.

53320013502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 53320013502 its reverse (20531002335), we get a palindrome (73851015837).

The spelling of 53320013502 in words is "fifty-three billion, three hundred twenty million, thirteen thousand, five hundred two".