667304053 has 4 divisors (see below), whose sum is σ = 718635148. Its totient is φ = 615972960.

The previous prime is 667304017. The next prime is 667304063. The reversal of 667304053 is 350403766.

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

It can be written as a sum of positive squares in 2 ways, for example, as 211353444 + 455950609 = 14538^2 + 21353^2 .

It is a cyclic number.

It is not a de Polignac number, because 667304053 - 2¹⁷ = 667172981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667304063) 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, 25665528 + ... + 25665553.

It is an arithmetic number, because the mean of its divisors is an integer number (179658787).

Almost surely, 2^667304053 is an apocalyptic number.

It is an amenable number.

667304053 is a deficient number, since it is larger than the sum of its proper divisors (51331095).

667304053 is a wasteful number, since it uses less digits than its factorization.

667304053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51331094.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 667304053 is about 25832.2289591897. The cubic root of 667304053 is about 873.8587801825.

The spelling of 667304053 in words is "six hundred sixty-seven million, three hundred four thousand, fifty-three".