13051550 has 12 divisors (see below), whose sum is σ = 24275976. Its totient is φ = 5220600.

The previous prime is 13051547. The next prime is 13051559. The reversal of 13051550 is 5515031.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13051559) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 130466 + ... + 130565.

It is an arithmetic number, because the mean of its divisors is an integer number (2022998).

Almost surely, 2^13051550 is an apocalyptic number.

13051550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13051550 is a deficient number, since it is larger than the sum of its proper divisors (11224426).

13051550 is a wasteful number, since it uses less digits than its factorization.

13051550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261043 (or 261038 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 13051550 is about 3612.6929014241. The cubic root of 13051550 is about 235.4438570764.

Adding to 13051550 its reverse (5515031), we get a palindrome (18566581).

The spelling of 13051550 in words is "thirteen million, fifty-one thousand, five hundred fifty".