65602401 has 4 divisors (see below), whose sum is σ = 87469872. Its totient is φ = 43734932.

The previous prime is 65602387. The next prime is 65602409. The reversal of 65602401 is 10420656.

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 a cyclic number.

It is not a de Polignac number, because 65602401 - 2¹⁵ = 65569633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65602409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10933731 + ... + 10933736.

It is an arithmetic number, because the mean of its divisors is an integer number (21867468).

Almost surely, 2^65602401 is an apocalyptic number.

It is an amenable number.

65602401 is a deficient number, since it is larger than the sum of its proper divisors (21867471).

65602401 is a wasteful number, since it uses less digits than its factorization.

65602401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21867470.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 65602401 is about 8099.5309123430. The cubic root of 65602401 is about 403.3108553980.

The spelling of 65602401 in words is "sixty-five million, six hundred two thousand, four hundred one".