13755457 has 4 divisors (see below), whose sum is σ = 13831636. Its totient is φ = 13679280.

The previous prime is 13755433. The next prime is 13755479. The reversal of 13755457 is 75455731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2202256 + 11553201 = 1484^2 + 3399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13755457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13755257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37818 + ... + 38179.

It is an arithmetic number, because the mean of its divisors is an integer number (3457909).

Almost surely, 2^13755457 is an apocalyptic number.

It is an amenable number.

13755457 is a deficient number, since it is larger than the sum of its proper divisors (76179).

13755457 is an equidigital number, since it uses as much as digits as its factorization.

13755457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76178.

The product of its digits is 73500, while the sum is 37.

The square root of 13755457 is about 3708.8349922853. The cubic root of 13755457 is about 239.6026817258.

The spelling of 13755457 in words is "thirteen million, seven hundred fifty-five thousand, four hundred fifty-seven".