65247552 has 112 divisors (see below), whose sum is σ = 195275200. Its totient is φ = 21358080.

The previous prime is 65247541. The next prime is 65247557. The reversal of 65247552 is 25574256.

65247552 is a `hidden beast` number, since 65 + 2 + 47 + 552 = 666.

It is a super-3 number, since 3×65247552³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65247557) 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, 105099 + ... + 105717.

Almost surely, 2^65247552 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 65247552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97637600).

65247552 is an abundant number, since it is smaller than the sum of its proper divisors (130027648).

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

65247552 is a wasteful number, since it uses less digits than its factorization.

65247552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 685 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 65247552 is about 8077.5956818846. The cubic root of 65247552 is about 402.5823593409.

The spelling of 65247552 in words is "sixty-five million, two hundred forty-seven thousand, five hundred fifty-two".