53252517408 has 192 divisors, whose sum is σ = 152984184192. Its totient is φ = 16152657920.

The previous prime is 53252517407. The next prime is 53252517469. The reversal of 53252517408 is 80471525235.

It is a super-2 number, since 2×53252517408² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53252517408.

It is not an unprimeable number, because it can be changed into a prime (53252517403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7557535 + ... + 7564577.

It is an arithmetic number, because the mean of its divisors is an integer number (796792626).

Almost surely, 2^53252517408 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 53252517408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76492092096).

53252517408 is an abundant number, since it is smaller than the sum of its proper divisors (99731666784).

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

53252517408 is a wasteful number, since it uses less digits than its factorization.

53252517408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227 (or 7219 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 53252517408 in words is "fifty-three billion, two hundred fifty-two million, five hundred seventeen thousand, four hundred eight".