5781455 has 4 divisors (see below), whose sum is σ = 6937752. Its totient is φ = 4625160.

The previous prime is 5781443. The next prime is 5781467. The reversal of 5781455 is 5541875.

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

It is an interprime number because it is at equal distance from previous prime (5781443) and next prime (5781467).

It is not a de Polignac number, because 5781455 - 2⁴ = 5781439 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, 578141 + ... + 578150.

It is an arithmetic number, because the mean of its divisors is an integer number (1734438).

Almost surely, 2^5781455 is an apocalyptic number.

5781455 is a deficient number, since it is larger than the sum of its proper divisors (1156297).

5781455 is a wasteful number, since it uses less digits than its factorization.

5781455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156296.

The product of its digits is 28000, while the sum is 35.

The square root of 5781455 is about 2404.4656371011. The cubic root of 5781455 is about 179.4784801549.

The spelling of 5781455 in words is "five million, seven hundred eighty-one thousand, four hundred fifty-five".