52545320860 has 24 divisors (see below), whose sum is σ = 110350343376. Its totient is φ = 21017143680.

The previous prime is 52545320851. The next prime is 52545320911. The reversal of 52545320860 is 6802354525.

It is a happy number.

It is a super-2 number, since 2×52545320860² (a number of 22 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501819 + ... + 597421.

It is an arithmetic number, because the mean of its divisors is an integer number (4597930974).

Almost surely, 2^52545320860 is an apocalyptic number.

It is an amenable number.

52545320860 is an abundant number, since it is smaller than the sum of its proper divisors (57805022516).

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

52545320860 is a wasteful number, since it uses less digits than its factorization.

52545320860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123093 (or 123091 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 52545320860 in words is "fifty-two billion, five hundred forty-five million, three hundred twenty thousand, eight hundred sixty".