65602481 has 4 divisors (see below), whose sum is σ = 74974272. Its totient is φ = 56230692.

The previous prime is 65602441. The next prime is 65602483. The reversal of 65602481 is 18420656.

65602481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65602481 - 2¹⁸ = 65340337 is a prime.

It is a super-2 number, since 2×65602481² = 8607371026710722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65602483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4685885 + ... + 4685898.

It is an arithmetic number, because the mean of its divisors is an integer number (18743568).

Almost surely, 2^65602481 is an apocalyptic number.

It is an amenable number.

65602481 is a deficient number, since it is larger than the sum of its proper divisors (9371791).

65602481 is an equidigital number, since it uses as much as digits as its factorization.

65602481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9371790.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 65602481 is about 8099.5358508991. The cubic root of 65602481 is about 403.3110193394.

The spelling of 65602481 in words is "sixty-five million, six hundred two thousand, four hundred eighty-one".