13750055 has 24 divisors (see below), whose sum is σ = 18552240. Its totient is φ = 9701120.

The previous prime is 13750049. The next prime is 13750057. The reversal of 13750055 is 55005731.

It is not a de Polignac number, because 13750055 - 2¹⁰ = 13749031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154451 + ... + 154539.

It is an arithmetic number, because the mean of its divisors is an integer number (773010).

Almost surely, 2^13750055 is an apocalyptic number.

13750055 is a deficient number, since it is larger than the sum of its proper divisors (4802185).

13750055 is an equidigital number, since it uses as much as digits as its factorization.

13750055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 13750055 is about 3708.1066597389. The cubic root of 13750055 is about 239.5713122807.

Adding to 13750055 its reverse (55005731), we get a palindrome (68755786).

It can be divided in two parts, 137500 and 55, that multiplied together give a square (7562500 = 2750²).

The spelling of 13750055 in words is "thirteen million, seven hundred fifty thousand, fifty-five".