65031632 has 10 divisors (see below), whose sum is σ = 125998818. Its totient is φ = 32515808.

The previous prime is 65031619. The next prime is 65031653. The reversal of 65031632 is 23613056.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 132496 = 8056^2 + 364^2 .

It is a super-2 number, since 2×65031632² = 8458226321166848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2032223 + ... + 2032254.

Almost surely, 2^65031632 is an apocalyptic number.

It is an amenable number.

65031632 is a deficient number, since it is larger than the sum of its proper divisors (60967186).

65031632 is a wasteful number, since it uses less digits than its factorization.

65031632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064485 (or 4064479 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 65031632 is about 8064.2192430514. The cubic root of 65031632 is about 402.1377876392.

Adding to 65031632 its reverse (23613056), we get a palindrome (88644688).

The spelling of 65031632 in words is "sixty-five million, thirty-one thousand, six hundred thirty-two".