664359053 has 4 divisors (see below), whose sum is σ = 678494400. Its totient is φ = 650223708.

The previous prime is 664359049. The next prime is 664359103. The reversal of 664359053 is 350953466.

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 664359053 - 2² = 664359049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 664359053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664359043) 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, 7067603 + ... + 7067696.

It is an arithmetic number, because the mean of its divisors is an integer number (169623600).

Almost surely, 2^664359053 is an apocalyptic number.

It is an amenable number.

664359053 is a deficient number, since it is larger than the sum of its proper divisors (14135347).

664359053 is a wasteful number, since it uses less digits than its factorization.

664359053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14135346.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 664359053 is about 25775.1634912371. The cubic root of 664359053 is about 872.5713564134.

The spelling of 664359053 in words is "six hundred sixty-four million, three hundred fifty-nine thousand, fifty-three".