65061863 has 4 divisors (see below), whose sum is σ = 65315280. Its totient is φ = 64808448.

The previous prime is 65061859. The next prime is 65061911. The reversal of 65061863 is 36816056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65061863 - 2² = 65061859 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65061803) 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, 126323 + ... + 126836.

It is an arithmetic number, because the mean of its divisors is an integer number (16328820).

Almost surely, 2^65061863 is an apocalyptic number.

65061863 is a deficient number, since it is larger than the sum of its proper divisors (253417).

65061863 is a wasteful number, since it uses less digits than its factorization.

65061863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253416.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 65061863 is about 8066.0934162704. The cubic root of 65061863 is about 402.2000913919.

The spelling of 65061863 in words is "sixty-five million, sixty-one thousand, eight hundred sixty-three".