65501131 has 2 divisors, whose sum is σ = 65501132. Its totient is φ = 65501130.

The previous prime is 65501101. The next prime is 65501147. The reversal of 65501131 is 13110556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65501131 - 2¹³ = 65492939 is a prime.

It is a super-2 number, since 2×65501131² = 8580796324558322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65501101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750565 + 32750566.

It is an arithmetic number, because the mean of its divisors is an integer number (32750566).

Almost surely, 2^65501131 is an apocalyptic number.

65501131 is a deficient number, since it is larger than the sum of its proper divisors (1).

65501131 is an equidigital number, since it uses as much as digits as its factorization.

65501131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 65501131 is about 8093.2769012310. The cubic root of 65501131 is about 403.1032190704.

Adding to 65501131 its reverse (13110556), we get a palindrome (78611687).

The spelling of 65501131 in words is "sixty-five million, five hundred one thousand, one hundred thirty-one".