14005557 has 6 divisors (see below), whose sum is σ = 20230262. Its totient is φ = 9337032.

The previous prime is 14005529. The next prime is 14005567. The reversal of 14005557 is 75550041.

It can be written as a sum of positive squares in only one way, i.e., 11553201 + 2452356 = 3399^2 + 1566^2 .

It is not a de Polignac number, because 14005557 - 2⁶ = 14005493 is a prime.

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 14005557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14005507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778078 + ... + 778095.

Almost surely, 2^14005557 is an apocalyptic number.

It is an amenable number.

14005557 is a deficient number, since it is larger than the sum of its proper divisors (6224705).

14005557 is a wasteful number, since it uses less digits than its factorization.

14005557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556179 (or 1556176 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 14005557 is about 3742.3998984609. The cubic root of 14005557 is about 241.0461106768.

Adding to 14005557 its reverse (75550041), we get a palindrome (89555598).

The spelling of 14005557 in words is "fourteen million, five thousand, five hundred fifty-seven".