52621166526 has 16 divisors (see below), whose sum is σ = 107809219728. Its totient is φ = 17112574400.

The previous prime is 52621166509. The next prime is 52621166573. The reversal of 52621166526 is 62566112625.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106953345 + ... + 106953836.

It is an arithmetic number, because the mean of its divisors is an integer number (6738076233).

Almost surely, 2^52621166526 is an apocalyptic number.

52621166526 is an abundant number, since it is smaller than the sum of its proper divisors (55188053202).

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

52621166526 is a wasteful number, since it uses less digits than its factorization.

52621166526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213907227.

The product of its digits is 259200, while the sum is 42.

The spelling of 52621166526 in words is "fifty-two billion, six hundred twenty-one million, one hundred sixty-six thousand, five hundred twenty-six".