65200261 has 4 divisors (see below), whose sum is σ = 74514592. Its totient is φ = 55885932.

The previous prime is 65200249. The next prime is 65200273. The reversal of 65200261 is 16200256.

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 an interprime number because it is at equal distance from previous prime (65200249) and next prime (65200273).

It is a cyclic number.

It is not a de Polignac number, because 65200261 - 2¹³ = 65192069 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65200211) 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, 4657155 + ... + 4657168.

It is an arithmetic number, because the mean of its divisors is an integer number (18628648).

Almost surely, 2^65200261 is an apocalyptic number.

It is an amenable number.

65200261 is a deficient number, since it is larger than the sum of its proper divisors (9314331).

65200261 is an equidigital number, since it uses as much as digits as its factorization.

65200261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9314330.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 65200261 is about 8074.6678569462. The cubic root of 65200261 is about 402.4850728104.

The spelling of 65200261 in words is "sixty-five million, two hundred thousand, two hundred sixty-one".