52150000 has 120 divisors (see below), whose sum is σ = 145303200. Its totient is φ = 17760000.

The previous prime is 52149989. The next prime is 52150031. The reversal of 52150000 is 5125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349926 + ... + 350074.

It is an arithmetic number, because the mean of its divisors is an integer number (1210860).

Almost surely, 2^52150000 is an apocalyptic number.

52150000 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 52150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72651600).

52150000 is an abundant number, since it is smaller than the sum of its proper divisors (93153200).

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

52150000 is an equidigital number, since it uses as much as digits as its factorization.

52150000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 52150000 is about 7221.4956899523. The cubic root of 52150000 is about 373.6096664456.

Adding to 52150000 its reverse (5125), we get a palindrome (52155125).

The spelling of 52150000 in words is "fifty-two million, one hundred fifty thousand".