65215552 has 14 divisors (see below), whose sum is σ = 129412238. Its totient is φ = 32607744.

The previous prime is 65215547. The next prime is 65215597. The reversal of 65215552 is 25551256.

It can be written as a sum of positive squares in only one way, i.e., 62473216 + 2742336 = 7904^2 + 1656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509433 + ... + 509560.

Almost surely, 2^65215552 is an apocalyptic number.

It is an amenable number.

65215552 is a deficient number, since it is larger than the sum of its proper divisors (64196686).

65215552 is a wasteful number, since it uses less digits than its factorization.

65215552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019005 (or 1018995 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 65215552 is about 8075.6146515296. The cubic root of 65215552 is about 402.5165344339.

The spelling of 65215552 in words is "sixty-five million, two hundred fifteen thousand, five hundred fifty-two".