65799252 has 18 divisors (see below), whose sum is σ = 166325978. Its totient is φ = 21933072.

The previous prime is 65799221. The next prime is 65799259. The reversal of 65799252 is 25299756.

It can be written as a sum of positive squares in only one way, i.e., 52359696 + 13439556 = 7236^2 + 3666^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 65799198 and 65799207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65799259) 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 5 ways as a sum of consecutive naturals, for example, 913843 + ... + 913914.

Almost surely, 2^65799252 is an apocalyptic number.

It is an amenable number.

65799252 is an abundant number, since it is smaller than the sum of its proper divisors (100526726).

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

65799252 is a wasteful number, since it uses less digits than its factorization.

65799252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827767 (or 1827762 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 65799252 is about 8111.6738100099. The cubic root of 65799252 is about 403.7138531861.

The spelling of 65799252 in words is "sixty-five million, seven hundred ninety-nine thousand, two hundred fifty-two".