65987552 has 24 divisors (see below), whose sum is σ = 135562896. Its totient is φ = 31558912.

The previous prime is 65987531. The next prime is 65987587. The reversal of 65987552 is 25578956.

It is a junction number, because it is equal to n+sod(n) for n = 65987497 and 65987506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44093 + ... + 45564.

It is an arithmetic number, because the mean of its divisors is an integer number (5648454).

Almost surely, 2^65987552 is an apocalyptic number.

It is an amenable number.

65987552 is an abundant number, since it is smaller than the sum of its proper divisors (69575344).

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

65987552 is a wasteful number, since it uses less digits than its factorization.

65987552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89690 (or 89682 counting only the distinct ones).

The product of its digits is 756000, while the sum is 47.

The square root of 65987552 is about 8123.2722470689. The cubic root of 65987552 is about 404.0985937194.

The spelling of 65987552 in words is "sixty-five million, nine hundred eighty-seven thousand, five hundred fifty-two".