63530665 has 16 divisors (see below), whose sum is σ = 85417920. Its totient is φ = 44953920.

The previous prime is 63530653. The next prime is 63530671. The reversal of 63530665 is 56603536.

It is a happy number.

It is not a de Polignac number, because 63530665 - 2¹⁷ = 63399593 is a prime.

It is a super-2 number, since 2×63530665² = 8072290790684450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63530665.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13575 + ... + 17644.

It is an arithmetic number, because the mean of its divisors is an integer number (5338620).

Almost surely, 2^63530665 is an apocalyptic number.

It is an amenable number.

63530665 is a deficient number, since it is larger than the sum of its proper divisors (21887255).

63530665 is a wasteful number, since it uses less digits than its factorization.

63530665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31272.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 63530665 is about 7970.6125862445. The cubic root of 63530665 is about 399.0198188241.

The spelling of 63530665 in words is "sixty-three million, five hundred thirty thousand, six hundred sixty-five".