13782455 has 4 divisors (see below), whose sum is σ = 16538952. Its totient is φ = 11025960.

The previous prime is 13782409. The next prime is 13782481. The reversal of 13782455 is 55428731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55428731 = 3557 ⋅15583.

It is not a de Polignac number, because 13782455 - 2⁸ = 13782199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378241 + ... + 1378250.

It is an arithmetic number, because the mean of its divisors is an integer number (4134738).

Almost surely, 2^13782455 is an apocalyptic number.

13782455 is a deficient number, since it is larger than the sum of its proper divisors (2756497).

13782455 is an equidigital number, since it uses as much as digits as its factorization.

13782455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756496.

The product of its digits is 33600, while the sum is 35.

The square root of 13782455 is about 3712.4728955240. The cubic root of 13782455 is about 239.7593362977.

The spelling of 13782455 in words is "thirteen million, seven hundred eighty-two thousand, four hundred fifty-five".