64730053 has 4 divisors (see below), whose sum is σ = 64884960. Its totient is φ = 64575148.

The previous prime is 64730051. The next prime is 64730143. The reversal of 64730053 is 35003746.

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 64730053 - 2¹ = 64730051 is a prime.

It is a super-2 number, since 2×64730053² = 8379959522765618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64730051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76825 + ... + 77662.

It is an arithmetic number, because the mean of its divisors is an integer number (16221240).

Almost surely, 2^64730053 is an apocalyptic number.

It is an amenable number.

64730053 is a deficient number, since it is larger than the sum of its proper divisors (154907).

64730053 is a wasteful number, since it uses less digits than its factorization.

64730053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154906.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 64730053 is about 8045.4989279721. The cubic root of 64730053 is about 401.5151969484.

Adding to 64730053 its reverse (35003746), we get a palindrome (99733799).

The spelling of 64730053 in words is "sixty-four million, seven hundred thirty thousand, fifty-three".