65749552 has 40 divisors (see below), whose sum is σ = 139468752. Its totient is φ = 29779200.

The previous prime is 65749549. The next prime is 65749577. The reversal of 65749552 is 25594756.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65749499 and 65749508.

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, 69402 + ... + 70342.

Almost surely, 2^65749552 is an apocalyptic number.

It is an amenable number.

65749552 is an abundant number, since it is smaller than the sum of its proper divisors (73719200).

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

65749552 is a wasteful number, since it uses less digits than its factorization.

65749552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1351 counting only the distinct ones).

The product of its digits is 378000, while the sum is 43.

The square root of 65749552 is about 8108.6097452029. The cubic root of 65749552 is about 403.6121821600.

The spelling of 65749552 in words is "sixty-five million, seven hundred forty-nine thousand, five hundred fifty-two".