65512836 has 81 divisors (see below), whose sum is σ = 177272823. Its totient is φ = 20396880.

The previous prime is 65512831. The next prime is 65512847. The reversal of 65512836 is 63821556.

The square root of 65512836 is 8094.

It is a perfect power (a square), and thus also a powerful number.

65512836 is a `hidden beast` number, since 65 + 512 + 83 + 6 = 666.

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 65512836.

It is not an unprimeable number, because it can be changed into a prime (65512831) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 922681 + ... + 922751.

Almost surely, 2^65512836 is an apocalyptic number.

65512836 is the 8094-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65512836

65512836 is an abundant number, since it is smaller than the sum of its proper divisors (111759987).

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

65512836 is a wasteful number, since it uses less digits than its factorization.

65512836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 95 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The cubic root of 65512836 is about 403.1272290484.

Multiplying 65512836 by its sum of digits (36), we get a square (2358462096 = 48564²).

65512836 divided by its sum of digits (36) gives a square (1819801 = 1349²).

The spelling of 65512836 in words is "sixty-five million, five hundred twelve thousand, eight hundred thirty-six".