65245536 has 36 divisors (see below), whose sum is σ = 185542812. Its totient is φ = 21748416.

The previous prime is 65245517. The next prime is 65245561. The reversal of 65245536 is 63554256.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 65245536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112986 + ... + 113561.

It is an arithmetic number, because the mean of its divisors is an integer number (5153967).

Almost surely, 2^65245536 is an apocalyptic number.

It is an amenable number.

65245536 is an abundant number, since it is smaller than the sum of its proper divisors (120297276).

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

65245536 is a wasteful number, since it uses less digits than its factorization.

65245536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226563 (or 226552 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 65245536 is about 8077.4708913125. The cubic root of 65245536 is about 402.5782130070.

The spelling of 65245536 in words is "sixty-five million, two hundred forty-five thousand, five hundred thirty-six".