65005402 has 16 divisors (see below), whose sum is σ = 121568832. Its totient is φ = 25326720.

The previous prime is 65005363. The next prime is 65005427. The reversal of 65005402 is 20450056.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210903 + ... + 211210.

It is an arithmetic number, because the mean of its divisors is an integer number (7598052).

Almost surely, 2^65005402 is an apocalyptic number.

65005402 is a deficient number, since it is larger than the sum of its proper divisors (56563430).

65005402 is a wasteful number, since it uses less digits than its factorization.

65005402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422133.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 65005402 is about 8062.5927591563. The cubic root of 65005402 is about 402.0837139917.

Adding to 65005402 its reverse (20450056), we get a palindrome (85455458).

The spelling of 65005402 in words is "sixty-five million, five thousand, four hundred two".