65010561 has 16 divisors (see below), whose sum is σ = 108069888. Its totient is φ = 33771600.

The previous prime is 65010559. The next prime is 65010563. The reversal of 65010561 is 16501056.

It is an interprime number because it is at equal distance from previous prime (65010559) and next prime (65010563).

It is not a de Polignac number, because 65010561 - 2¹ = 65010559 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (65010563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140485 + ... + 140946.

It is an arithmetic number, because the mean of its divisors is an integer number (6754368).

Almost surely, 2^65010561 is an apocalyptic number.

It is an amenable number.

65010561 is a deficient number, since it is larger than the sum of its proper divisors (43059327).

65010561 is a wasteful number, since it uses less digits than its factorization.

65010561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281452.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 65010561 is about 8062.9126871125. The cubic root of 65010561 is about 402.0943505180.

It can be divided in two parts, 650 and 10561, that added together give a palindrome (11211).

The spelling of 65010561 in words is "sixty-five million, ten thousand, five hundred sixty-one".