65198053 has 4 divisors (see below), whose sum is σ = 67301248. Its totient is φ = 63094860.

The previous prime is 65198047. The next prime is 65198057. The reversal of 65198053 is 35089156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65198053 is a prime.

It is a super-2 number, since 2×65198053² = 8501572229981618, which contains 22 as substring.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051551 + ... + 1051612.

It is an arithmetic number, because the mean of its divisors is an integer number (16825312).

Almost surely, 2^65198053 is an apocalyptic number.

It is an amenable number.

65198053 is a deficient number, since it is larger than the sum of its proper divisors (2103195).

65198053 is a wasteful number, since it uses less digits than its factorization.

65198053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103194.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 65198053 is about 8074.5311318986. The cubic root of 65198053 is about 402.4805293875.

The spelling of 65198053 in words is "sixty-five million, one hundred ninety-eight thousand, fifty-three".