1055521023 has 8 divisors (see below), whose sum is σ = 1433915568. Its totient is φ = 690403584.

The previous prime is 1055520937. The next prime is 1055521039. The reversal of 1055521023 is 3201255501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1055521023 - 2²⁵ = 1021966591 is a prime.

It is a super-2 number, since 2×1055521023² = 2228249259989933058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055520984 and 1055521002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055521123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319090 + ... + 3319407.

It is an arithmetic number, because the mean of its divisors is an integer number (179239446).

Almost surely, 2^1055521023 is an apocalyptic number.

1055521023 is a deficient number, since it is larger than the sum of its proper divisors (378394545).

1055521023 is an equidigital number, since it uses as much as digits as its factorization.

1055521023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638553.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1055521023 is about 32488.7830335333. The cubic root of 1055521023 is about 1018.1746872599.

Adding to 1055521023 its reverse (3201255501), we get a palindrome (4256776524).

The spelling of 1055521023 in words is "one billion, fifty-five million, five hundred twenty-one thousand, twenty-three".