52252738813820 has 48 divisors (see below), whose sum is σ = 116186098599648. Its totient is φ = 19671518238720.

The previous prime is 52252738813811. The next prime is 52252738813903. The reversal of 52252738813820 is 2831883725225.

It is a happy number.

It is a super-2 number, since 2×52252738813820² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118021184 + ... + 118463096.

It is an arithmetic number, because the mean of its divisors is an integer number (2420543720826).

Almost surely, 2^{52252738813820} is an apocalyptic number.

It is an amenable number.

52252738813820 is an abundant number, since it is smaller than the sum of its proper divisors (63933359785828).

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

52252738813820 is a wasteful number, since it uses less digits than its factorization.

52252738813820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789710 (or 789708 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 52252738813820 in words is "fifty-two trillion, two hundred fifty-two billion, seven hundred thirty-eight million, eight hundred thirteen thousand, eight hundred twenty".