65063381 has 4 divisors (see below), whose sum is σ = 65083500. Its totient is φ = 65043264.

The previous prime is 65063363. The next prime is 65063399. The reversal of 65063381 is 18336056.

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

It is an interprime number because it is at equal distance from previous prime (65063363) and next prime (65063399).

It can be written as a sum of positive squares in 2 ways, for example, as 16273156 + 48790225 = 4034^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 65063381 - 2¹⁸ = 64801237 is a prime.

It is a super-2 number, since 2×65063381² = 8466487094302322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65063321) 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, 3986 + ... + 12083.

It is an arithmetic number, because the mean of its divisors is an integer number (16270875).

Almost surely, 2^65063381 is an apocalyptic number.

It is an amenable number.

65063381 is a deficient number, since it is larger than the sum of its proper divisors (20119).

65063381 is a wasteful number, since it uses less digits than its factorization.

65063381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20118.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 65063381 is about 8066.1875133176. The cubic root of 65063381 is about 402.2032193636.

The spelling of 65063381 in words is "sixty-five million, sixty-three thousand, three hundred eighty-one".