65363540 has 48 divisors (see below), whose sum is σ = 150595200. Its totient is φ = 23633280.

The previous prime is 65363537. The next prime is 65363549. The reversal of 65363540 is 4536356.

It is a super-2 number, since 2×65363540² = 8544784722663200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65363497 and 65363506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65363549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43034 + ... + 44526.

It is an arithmetic number, because the mean of its divisors is an integer number (3137400).

Almost surely, 2^65363540 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 65363540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75297600).

65363540 is an abundant number, since it is smaller than the sum of its proper divisors (85231660).

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

65363540 is a wasteful number, since it uses less digits than its factorization.

65363540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 65363540 is about 8084.7721056317. The cubic root of 65363540 is about 402.8207697202.

Adding to 65363540 its reverse (4536356), we get a palindrome (69899896).

The spelling of 65363540 in words is "sixty-five million, three hundred sixty-three thousand, five hundred forty".