1052255921 has 2 divisors, whose sum is σ = 1052255922. Its totient is φ = 1052255920.

The previous prime is 1052255759. The next prime is 1052255947. The reversal of 1052255921 is 1295522501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1022400625 + 29855296 = 31975^2 + 5464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052255921 - 2¹⁰ = 1052254897 is a prime.

It is a super-4 number, since 4×1052255921⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1052255521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526127960 + 526127961.

It is an arithmetic number, because the mean of its divisors is an integer number (526127961).

Almost surely, 2^1052255921 is an apocalyptic number.

It is an amenable number.

1052255921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052255921 is an equidigital number, since it uses as much as digits as its factorization.

1052255921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 1052255921 is about 32438.4944317704. The cubic root of 1052255921 is about 1017.1237440340.

The spelling of 1052255921 in words is "one billion, fifty-two million, two hundred fifty-five thousand, nine hundred twenty-one".