65553672 has 32 divisors (see below), whose sum is σ = 167698080. Its totient is φ = 21342720.

The previous prime is 65553641. The next prime is 65553689. The reversal of 65553672 is 27635556.

It is a self number, because there is not a number n which added to its sum of digits gives 65553672.

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, 30729 + ... + 32792.

It is an arithmetic number, because the mean of its divisors is an integer number (5240565).

Almost surely, 2^65553672 is an apocalyptic number.

It is an amenable number.

65553672 is an abundant number, since it is smaller than the sum of its proper divisors (102144408).

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

65553672 is a wasteful number, since it uses less digits than its factorization.

65553672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63573 (or 63569 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 65553672 is about 8096.5222163593. The cubic root of 65553672 is about 403.2109718449.

The spelling of 65553672 in words is "sixty-five million, five hundred fifty-three thousand, six hundred seventy-two".