1055252321 has 8 divisors (see below), whose sum is σ = 1084276800. Its totient is φ = 1026254448.

The previous prime is 1055252309. The next prime is 1055252327. The reversal of 1055252321 is 1232525501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055252321 - 2⁶ = 1055252257 is a prime.

It is a super-2 number, since 2×1055252321² = 2227114921951774082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055252327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94580 + ... + 105146.

It is an arithmetic number, because the mean of its divisors is an integer number (135534600).

Almost surely, 2^1055252321 is an apocalyptic number.

It is an amenable number.

1055252321 is a deficient number, since it is larger than the sum of its proper divisors (29024479).

1055252321 is a wasteful number, since it uses less digits than its factorization.

1055252321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13303.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1055252321 is about 32484.6474661493. The cubic root of 1055252321 is about 1018.0882816563.

Adding to 1055252321 its reverse (1232525501), we get a palindrome (2287777822).

The spelling of 1055252321 in words is "one billion, fifty-five million, two hundred fifty-two thousand, three hundred twenty-one".