65531955 has 16 divisors (see below), whose sum is σ = 105434784. Its totient is φ = 34755840.

The previous prime is 65531953. The next prime is 65531971. The reversal of 65531955 is 55913556.

It is not a de Polignac number, because 65531955 - 2¹ = 65531953 is a prime.

It is a super-2 number, since 2×65531955² = 8588874252244050, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (65531951) 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, 9354 + ... + 14783.

It is an arithmetic number, because the mean of its divisors is an integer number (6589674).

Almost surely, 2^65531955 is an apocalyptic number.

65531955 is a deficient number, since it is larger than the sum of its proper divisors (39902829).

65531955 is a wasteful number, since it uses less digits than its factorization.

65531955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24326.

The product of its digits is 101250, while the sum is 39.

The square root of 65531955 is about 8095.1809738881. The cubic root of 65531955 is about 403.1664409053.

The spelling of 65531955 in words is "sixty-five million, five hundred thirty-one thousand, nine hundred fifty-five".