1055624321 has 2 divisors, whose sum is σ = 1055624322. Its totient is φ = 1055624320.

The previous prime is 1055624309. The next prime is 1055624341. The reversal of 1055624321 is 1234265501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022400625 + 33223696 = 31975^2 + 5764^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055624321 - 2¹⁴ = 1055607937 is a prime.

It is a super-2 number, since 2×1055624321² = 2228685414173422082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055624341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527812160 + 527812161.

It is an arithmetic number, because the mean of its divisors is an integer number (527812161).

Almost surely, 2^1055624321 is an apocalyptic number.

It is an amenable number.

1055624321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055624321 is an equidigital number, since it uses as much as digits as its factorization.

1055624321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1055624321 is about 32490.3727433220. The cubic root of 1055624321 is about 1018.2079005501.

Adding to 1055624321 its reverse (1234265501), we get a palindrome (2289889822).

The spelling of 1055624321 in words is "one billion, fifty-five million, six hundred twenty-four thousand, three hundred twenty-one".