1055406023 has 4 divisors (see below), whose sum is σ = 1206178320. Its totient is φ = 904633728.

The previous prime is 1055406007. The next prime is 1055406031. The reversal of 1055406023 is 3206045501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3206045501 = 48799 ⋅65699.

It is a cyclic number.

It is not a de Polignac number, because 1055406023 - 2⁴ = 1055406007 is a prime.

It is a super-2 number, since 2×1055406023² = 2227763746769353058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1055405983 and 1055406001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055406073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75386138 + ... + 75386151.

It is an arithmetic number, because the mean of its divisors is an integer number (301544580).

Almost surely, 2^1055406023 is an apocalyptic number.

1055406023 is a deficient number, since it is larger than the sum of its proper divisors (150772297).

1055406023 is an equidigital number, since it uses as much as digits as its factorization.

1055406023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150772296.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1055406023 is about 32487.0131437164. The cubic root of 1055406023 is about 1018.1377088897.

The spelling of 1055406023 in words is "one billion, fifty-five million, four hundred six thousand, twenty-three".