13257755 has 8 divisors (see below), whose sum is σ = 18182112. Its totient is φ = 9091008.

The previous prime is 13257743. The next prime is 13257781. The reversal of 13257755 is 55775231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13257755 - 2²² = 9063451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 378793 = 13257755 / (1 + 3 + 2 + 5 + 7 + 7 + 5 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189362 + ... + 189431.

It is an arithmetic number, because the mean of its divisors is an integer number (2272764).

Almost surely, 2^13257755 is an apocalyptic number.

13257755 is a deficient number, since it is larger than the sum of its proper divisors (4924357).

13257755 is an equidigital number, since it uses as much as digits as its factorization.

13257755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378805.

The product of its digits is 36750, while the sum is 35.

The square root of 13257755 is about 3641.1200199938. The cubic root of 13257755 is about 236.6773309572.

The spelling of 13257755 in words is "thirteen million, two hundred fifty-seven thousand, seven hundred fifty-five".