65810053 has 4 divisors (see below), whose sum is σ = 69273760. Its totient is φ = 62346348.

The previous prime is 65810027. The next prime is 65810057. The reversal of 65810053 is 35001856.

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 not a de Polignac number, because 65810053 - 2⁵ = 65810021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65810057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731825 + ... + 1731862.

It is an arithmetic number, because the mean of its divisors is an integer number (17318440).

Almost surely, 2^65810053 is an apocalyptic number.

It is an amenable number.

65810053 is a deficient number, since it is larger than the sum of its proper divisors (3463707).

65810053 is a wasteful number, since it uses less digits than its factorization.

65810053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463706.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 65810053 is about 8112.3395515720. The cubic root of 65810053 is about 403.7359419618.

The spelling of 65810053 in words is "sixty-five million, eight hundred ten thousand, fifty-three".