52261533145530 has 48 divisors (see below), whose sum is σ = 143872926546024. Its totient is φ = 13116620083200.

The previous prime is 52261533145511. The next prime is 52261533145531. The reversal of 52261533145530 is 3554133516225.

52261533145530 is a `hidden beast` number, since 5 + 2 + 2 + 61 + 5 + 3 + 31 + 4 + 553 + 0 = 666.

52261533145530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 51804193385169 + 457339760361 = 7197513^2 + 676269^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (52261533145531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17078930871 + ... + 17078933930.

Almost surely, 2^{52261533145530} is an apocalyptic number.

52261533145530 is an abundant number, since it is smaller than the sum of its proper divisors (91611393400494).

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

52261533145530 is a wasteful number, since it uses less digits than its factorization.

52261533145530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34157864831 (or 34157864828 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 52261533145530 in words is "fifty-two trillion, two hundred sixty-one billion, five hundred thirty-three million, one hundred forty-five thousand, five hundred thirty".