13825550 has 24 divisors (see below), whose sum is σ = 25953696. Its totient is φ = 5479040.

The previous prime is 13825549. The next prime is 13825579. The reversal of 13825550 is 5552831.

It is a super-2 number, since 2×13825550² = 382291665605000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 4427 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (1081404).

Almost surely, 2^13825550 is an apocalyptic number.

13825550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13825550 is a deficient number, since it is larger than the sum of its proper divisors (12128146).

13825550 is a wasteful number, since it uses less digits than its factorization.

13825550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2567 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 13825550 is about 3718.2724483287. The cubic root of 13825550 is about 240.0089695722.

The spelling of 13825550 in words is "thirteen million, eight hundred twenty-five thousand, five hundred fifty".