52689905400 has 384 divisors, whose sum is σ = 189325382400. Its totient is φ = 11980185600.

The previous prime is 52689905393. The next prime is 52689905441. The reversal of 52689905400 is 450998625.

It is a super-2 number, since 2×52689905400² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52689905400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 41849971 + ... + 41851229.

It is an arithmetic number, because the mean of its divisors is an integer number (493034850).

Almost surely, 2^52689905400 is an apocalyptic number.

52689905400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52689905400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94662691200).

52689905400 is an abundant number, since it is smaller than the sum of its proper divisors (136635477000).

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

52689905400 is a wasteful number, since it uses less digits than its factorization.

52689905400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 52689905400 in words is "fifty-two billion, six hundred eighty-nine million, nine hundred five thousand, four hundred".