455255681 has 4 divisors (see below), whose sum is σ = 455347200. Its totient is φ = 455164164.

The previous prime is 455255657. The next prime is 455255707. The reversal of 455255681 is 186552554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 186552554 = 2 ⋅93276277.

It is a cyclic number.

It is not a de Polignac number, because 455255681 - 2¹⁸ = 454993537 is a prime.

It is a super-2 number, since 2×455255681² = 414515470165547522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (455255611) 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, 37841 + ... + 48398.

It is an arithmetic number, because the mean of its divisors is an integer number (113836800).

Almost surely, 2^455255681 is an apocalyptic number.

It is an amenable number.

455255681 is a deficient number, since it is larger than the sum of its proper divisors (91519).

455255681 is an equidigital number, since it uses as much as digits as its factorization.

455255681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91518.

The product of its digits is 240000, while the sum is 41.

The square root of 455255681 is about 21336.7214210619. The cubic root of 455255681 is about 769.2812098096.

The spelling of 455255681 in words is "four hundred fifty-five million, two hundred fifty-five thousand, six hundred eighty-one".