669625583 has 8 divisors (see below), whose sum is σ = 730867536. Its totient is φ = 608444800.

The previous prime is 669625559. The next prime is 669625601. The reversal of 669625583 is 385526966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669625583 - 2¹⁰ = 669624559 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 (669625543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9335 + ... + 37767.

It is an arithmetic number, because the mean of its divisors is an integer number (91358442).

Almost surely, 2^669625583 is an apocalyptic number.

669625583 is a deficient number, since it is larger than the sum of its proper divisors (61241953).

669625583 is a wasteful number, since it uses less digits than its factorization.

669625583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30585.

The product of its digits is 2332800, while the sum is 50.

The square root of 669625583 is about 25877.1247050363. The cubic root of 669625583 is about 874.8709831001.

The spelling of 669625583 in words is "six hundred sixty-nine million, six hundred twenty-five thousand, five hundred eighty-three".