1055021481 has 24 divisors (see below), whose sum is σ = 1588394496. Its totient is φ = 674032320.

The previous prime is 1055021467. The next prime is 1055021491. The reversal of 1055021481 is 1841205501.

1055021481 is a `hidden beast` number, since 10 + 5 + 502 + 148 + 1 = 666.

It is not a de Polignac number, because 1055021481 - 2¹⁰ = 1055020457 is a prime.

It is a super-2 number, since 2×1055021481² = 2226140650742866722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055021491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10381 + ... + 47093.

It is an arithmetic number, because the mean of its divisors is an integer number (66183104).

Almost surely, 2^1055021481 is an apocalyptic number.

It is an amenable number.

1055021481 is a deficient number, since it is larger than the sum of its proper divisors (533373015).

1055021481 is a wasteful number, since it uses less digits than its factorization.

1055021481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36853 (or 36850 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1055021481 is about 32481.0942087855. The cubic root of 1055021481 is about 1018.0140394954.

Adding to 1055021481 its reverse (1841205501), we get a palindrome (2896226982).

The spelling of 1055021481 in words is "one billion, fifty-five million, twenty-one thousand, four hundred eighty-one".