65038950 has 144 divisors (see below), whose sum is σ = 186456816. Its totient is φ = 16848000.

The previous prime is 65038943. The next prime is 65038979. The reversal of 65038950 is 5983056.

65038950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 643900 + ... + 644000.

It is an arithmetic number, because the mean of its divisors is an integer number (1294839).

Almost surely, 2^65038950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65038950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93228408).

65038950 is an abundant number, since it is smaller than the sum of its proper divisors (121417866).

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

65038950 is a wasteful number, since it uses less digits than its factorization.

65038950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 65038950 is about 8064.6729629911. The cubic root of 65038950 is about 402.1528712422.

The spelling of 65038950 in words is "sixty-five million, thirty-eight thousand, nine hundred fifty".