65180532 has 48 divisors (see below), whose sum is σ = 158416832. Its totient is φ = 20839680.

The previous prime is 65180527. The next prime is 65180537. The reversal of 65180532 is 23508156.

It is an interprime number because it is at equal distance from previous prime (65180527) and next prime (65180537).

It is a self number, because there is not a number n which added to its sum of digits gives 65180532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65180537) 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, 31407 + ... + 33417.

Almost surely, 2^65180532 is an apocalyptic number.

It is an amenable number.

65180532 is an abundant number, since it is smaller than the sum of its proper divisors (93236300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65180532 is a wasteful number, since it uses less digits than its factorization.

65180532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 65180532 is about 8073.4461043596. The cubic root of 65180532 is about 402.4444726198. Note that the first 4 decimals are identical.

Adding to 65180532 its reverse (23508156), we get a palindrome (88688688).

The spelling of 65180532 in words is "sixty-five million, one hundred eighty thousand, five hundred thirty-two".