13855570 has 16 divisors (see below), whose sum is σ = 25087320. Its totient is φ = 5509504.

The previous prime is 13855559. The next prime is 13855607. The reversal of 13855570 is 7555831.

It can be written as a sum of positive squares in 4 ways, for example, as 13549761 + 305809 = 3681^2 + 553^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275 + ... + 5734.

Almost surely, 2^13855570 is an apocalyptic number.

13855570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13855570 is a deficient number, since it is larger than the sum of its proper divisors (11231750).

13855570 is a wasteful number, since it uses less digits than its factorization.

13855570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 13855570 is about 3722.3070802931. The cubic root of 13855570 is about 240.1825578600.

The spelling of 13855570 in words is "thirteen million, eight hundred fifty-five thousand, five hundred seventy".