65243552 has 48 divisors (see below), whose sum is σ = 148381632. Its totient is φ = 27909120.

The previous prime is 65243539. The next prime is 65243593. The reversal of 65243552 is 25534256.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533 + ... + 11435.

It is an arithmetic number, because the mean of its divisors is an integer number (3091284).

Almost surely, 2^65243552 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 65243552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74190816).

65243552 is an abundant number, since it is smaller than the sum of its proper divisors (83138080).

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

65243552 is a wasteful number, since it uses less digits than its factorization.

65243552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10941 (or 10933 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 65243552 is about 8077.3480796608. The cubic root of 65243552 is about 402.5741324046.

The spelling of 65243552 in words is "sixty-five million, two hundred forty-three thousand, five hundred fifty-two".