53261571852 has 18 divisors (see below), whose sum is σ = 134633417828. Its totient is φ = 17753857272.

The previous prime is 53261571833. The next prime is 53261571859. The reversal of 53261571852 is 25817516235.

53261571852 is a `hidden beast` number, since 5 + 3 + 26 + 1 + 571 + 8 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×53261571852² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53261571798 and 53261571807.

It is not an unprimeable number, because it can be changed into a prime (53261571859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 739744018 + ... + 739744089.

Almost surely, 2^53261571852 is an apocalyptic number.

It is an amenable number.

53261571852 is an abundant number, since it is smaller than the sum of its proper divisors (81371845976).

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

53261571852 is a wasteful number, since it uses less digits than its factorization.

53261571852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479488117 (or 1479488112 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The spelling of 53261571852 in words is "fifty-three billion, two hundred sixty-one million, five hundred seventy-one thousand, eight hundred fifty-two".