13122550 has 24 divisors (see below), whose sum is σ = 27895536. Its totient is φ = 4499040.

The previous prime is 13122547. The next prime is 13122601. The reversal of 13122550 is 5522131.

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, 18397 + ... + 19096.

It is an arithmetic number, because the mean of its divisors is an integer number (1162314).

Almost surely, 2^13122550 is an apocalyptic number.

13122550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122550 is an abundant number, since it is smaller than the sum of its proper divisors (14772986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13122550 is a wasteful number, since it uses less digits than its factorization.

13122550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37512 (or 37507 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13122550 is about 3622.5060386423. The cubic root of 13122550 is about 235.8700208323.

Adding to 13122550 its reverse (5522131), we get a palindrome (18644681).

The spelling of 13122550 in words is "thirteen million, one hundred twenty-two thousand, five hundred fifty".