1056455 has 4 divisors (see below), whose sum is σ = 1267752. Its totient is φ = 845160.

The previous prime is 1056443. The next prime is 1056463. The reversal of 1056455 is 5546501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5546501 = 863 ⋅6427.

It is not a de Polignac number, because 1056455 - 2¹⁴ = 1040071 is a prime.

It is a super-2 number, since 2×1056455² = 2232194334050, which contains 22 as substring.

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, 105641 + ... + 105650.

It is an arithmetic number, because the mean of its divisors is an integer number (316938).

2^1056455 is an apocalyptic number.

1056455 is a deficient number, since it is larger than the sum of its proper divisors (211297).

1056455 is an equidigital number, since it uses as much as digits as its factorization.

1056455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211296.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1056455 is about 1027.8399680884. The cubic root of 1056455 is about 101.8474909101.

It can be divided in two parts, 10 and 56455, that added together give a palindrome (56465).

The spelling of 1056455 in words is "one million, fifty-six thousand, four hundred fifty-five".