65231601 has 16 divisors (see below), whose sum is σ = 92260800. Its totient is φ = 40854528.

The previous prime is 65231599. The next prime is 65231653. The reversal of 65231601 is 10613256.

It is not a de Polignac number, because 65231601 - 2¹ = 65231599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65231671) 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, 43065 + ... + 44553.

It is an arithmetic number, because the mean of its divisors is an integer number (5766300).

Almost surely, 2^65231601 is an apocalyptic number.

It is an amenable number.

65231601 is a deficient number, since it is larger than the sum of its proper divisors (27029199).

65231601 is a wasteful number, since it uses less digits than its factorization.

65231601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 65231601 is about 8076.6082608976. The cubic root of 65231601 is about 402.5495503726.

Adding to 65231601 its reverse (10613256), we get a palindrome (75844857).

The spelling of 65231601 in words is "sixty-five million, two hundred thirty-one thousand, six hundred one".