64604051 has 4 divisors (see below), whose sum is σ = 65489112. Its totient is φ = 63718992.

The previous prime is 64604039. The next prime is 64604077. The reversal of 64604051 is 15040646.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64604051 - 2¹⁰ = 64603027 is a prime.

It is a super-2 number, since 2×64604051² = 8347366811221202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64604051.

It is not an unprimeable number, because it can be changed into a prime (64604081) 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, 442421 + ... + 442566.

It is an arithmetic number, because the mean of its divisors is an integer number (16372278).

Almost surely, 2^64604051 is an apocalyptic number.

64604051 is a deficient number, since it is larger than the sum of its proper divisors (885061).

64604051 is an equidigital number, since it uses as much as digits as its factorization.

64604051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885060.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 64604051 is about 8037.6645239771. The cubic root of 64604051 is about 401.2545010381.

Adding to 64604051 its reverse (15040646), we get a palindrome (79644697).

The spelling of 64604051 in words is "sixty-four million, six hundred four thousand, fifty-one".