65198052 has 36 divisors (see below), whose sum is σ = 167070540. Its totient is φ = 21434112.

The previous prime is 65198047. The next prime is 65198057. The reversal of 65198052 is 25089156.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65198047) and next prime (65198057).

It can be written as a sum of positive squares in 2 ways, for example, as 48108096 + 17089956 = 6936^2 + 4134^2 .

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 junction number, because it is equal to n+sod(n) for n = 65197998 and 65198016.

It is not an unprimeable number, because it can be changed into a prime (65198057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9777 + ... + 15032.

Almost surely, 2^65198052 is an apocalyptic number.

It is an amenable number.

65198052 is an abundant number, since it is smaller than the sum of its proper divisors (101872488).

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

65198052 is a wasteful number, since it uses less digits than its factorization.

65198052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24892 (or 24887 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 65198052 is about 8074.5310699755. The cubic root of 65198052 is about 402.4805273297.

The spelling of 65198052 in words is "sixty-five million, one hundred ninety-eight thousand, fifty-two".