65525480 has 64 divisors (see below), whose sum is σ = 157289040. Its totient is φ = 24481792.

The previous prime is 65525479. The next prime is 65525489. The reversal of 65525480 is 8452556.

It can be written as a sum of positive squares in 8 ways, for example, as 37625956 + 27899524 = 6134^2 + 5282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65525480.

It is not an unprimeable number, because it can be changed into a prime (65525489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117362 + ... + 117918.

Almost surely, 2^65525480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65525480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78644520).

65525480 is an abundant number, since it is smaller than the sum of its proper divisors (91763560).

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

65525480 is a wasteful number, since it uses less digits than its factorization.

65525480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 65525480 is about 8094.7810347161. The cubic root of 65525480 is about 403.1531619450.

The spelling of 65525480 in words is "sixty-five million, five hundred twenty-five thousand, four hundred eighty".