13573550 has 12 divisors (see below), whose sum is σ = 25246896. Its totient is φ = 5429400.

The previous prime is 13573513. The next prime is 13573559. The reversal of 13573550 is 5537531.

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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13573559) 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, 135686 + ... + 135785.

It is an arithmetic number, because the mean of its divisors is an integer number (2103908).

Almost surely, 2^13573550 is an apocalyptic number.

13573550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13573550 is a deficient number, since it is larger than the sum of its proper divisors (11673346).

13573550 is a wasteful number, since it uses less digits than its factorization.

13573550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271483 (or 271478 counting only the distinct ones).

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 13573550 is about 3684.2299059641. The cubic root of 13573550 is about 238.5417946729.

The spelling of 13573550 in words is "thirteen million, five hundred seventy-three thousand, five hundred fifty".