52505413000 has 128 divisors (see below), whose sum is σ = 127042007040. Its totient is φ = 20290080000.

The previous prime is 52505412959. The next prime is 52505413001. The reversal of 52505413000 is 31450525.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (52505413001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25449969 + ... + 25452031.

It is an arithmetic number, because the mean of its divisors is an integer number (992515680).

Almost surely, 2^52505413000 is an apocalyptic number.

52505413000 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 52505413000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63521003520).

52505413000 is an abundant number, since it is smaller than the sum of its proper divisors (74536594040).

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

52505413000 is a wasteful number, since it uses less digits than its factorization.

52505413000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936 (or 2922 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 52505413000 its reverse (31450525), we get a palindrome (52536863525).

The spelling of 52505413000 in words is "fifty-two billion, five hundred five million, four hundred thirteen thousand".