13855534 has 24 divisors (see below), whose sum is σ = 26376408. Its totient is φ = 5397840.

The previous prime is 13855519. The next prime is 13855549. The reversal of 13855534 is 43555831.

It is an interprime number because it is at equal distance from previous prime (13855519) and next prime (13855549).

It is a self number, because there is not a number n which added to its sum of digits gives 13855534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5349 + ... + 7504.

It is an arithmetic number, because the mean of its divisors is an integer number (1099017).

Almost surely, 2^13855534 is an apocalyptic number.

13855534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13855534 is a deficient number, since it is larger than the sum of its proper divisors (12520874).

13855534 is a wasteful number, since it uses less digits than its factorization.

13855534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12880 (or 12873 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 13855534 is about 3722.3022445793. The cubic root of 13855534 is about 240.1823498431.

The spelling of 13855534 in words is "thirteen million, eight hundred fifty-five thousand, five hundred thirty-four".