52051615000 has 320 divisors, whose sum is σ = 152879063040. Its totient is φ = 16135680000.

The previous prime is 52051614997. The next prime is 52051615009. The reversal of 52051615000 is 51615025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52051615009) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 135904809 + ... + 135905191.

It is an arithmetic number, because the mean of its divisors is an integer number (477747072).

Almost surely, 2^52051615000 is an apocalyptic number.

52051615000 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 52051615000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76439531520).

52051615000 is an abundant number, since it is smaller than the sum of its proper divisors (100827448040).

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

52051615000 is a wasteful number, since it uses less digits than its factorization.

52051615000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 52051615000 its sum of digits (25), we get a palindrome (52051615025).

The spelling of 52051615000 in words is "fifty-two billion, fifty-one million, six hundred fifteen thousand".