65051250 has 160 divisors (see below), whose sum is σ = 188939520. Its totient is φ = 14760000.

The previous prime is 65051227. The next prime is 65051279. The reversal of 65051250 is 5215056.

65051250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65051250.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 783709 + ... + 783791.

It is an arithmetic number, because the mean of its divisors is an integer number (1180872).

Almost surely, 2^65051250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65051250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94469760).

65051250 is an abundant number, since it is smaller than the sum of its proper divisors (123888270).

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

65051250 is a wasteful number, since it uses less digits than its factorization.

65051250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 65051250 is about 8065.4355121097. The cubic root of 65051250 is about 402.1782210186.

The spelling of 65051250 in words is "sixty-five million, fifty-one thousand, two hundred fifty".