52650000 has 300 divisors, whose sum is σ = 205119684. Its totient is φ = 12960000.

The previous prime is 52649999. The next prime is 52650019. The reversal of 52650000 is 5625.

It can be written as a sum of positive squares in 6 ways, for example, as 49787136 + 2862864 = 7056^2 + 1692^2 .

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4049994 + ... + 4050006.

Almost surely, 2^52650000 is an apocalyptic number.

52650000 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 52650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102559842).

52650000 is an abundant number, since it is smaller than the sum of its proper divisors (152469684).

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

52650000 is an equidigital number, since it uses as much as digits as its factorization.

52650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 52650000 is about 7256.0319734687. The cubic root of 52650000 is about 374.7998932384.

Adding to 52650000 its reverse (5625), we get a palindrome (52655625).

The spelling of 52650000 in words is "fifty-two million, six hundred fifty thousand".