65050000 has 60 divisors (see below), whose sum is σ = 157653972. Its totient is φ = 26000000.

The previous prime is 65049989. The next prime is 65050009. The reversal of 65050000 is 5056.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 64834704 + 215296 = 8052^2 + 464^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (65050009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49350 + ... + 50650.

Almost surely, 2^65050000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78826986).

65050000 is an abundant number, since it is smaller than the sum of its proper divisors (92603972).

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

65050000 is an equidigital number, since it uses as much as digits as its factorization.

65050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 65050000 is about 8065.3580205717. The cubic root of 65050000 is about 402.1756449677.

Adding to 65050000 its reverse (5056), we get a palindrome (65055056).

The spelling of 65050000 in words is "sixty-five million, fifty thousand".