1552241321 has 8 divisors (see below), whose sum is σ = 1644053760. Its totient is φ = 1460484928.

The previous prime is 1552241311. The next prime is 1552241329. The reversal of 1552241321 is 1231422551.

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 1552241321 - 2¹⁰ = 1552240297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552241329) 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, 51920 + ... + 76158.

It is an arithmetic number, because the mean of its divisors is an integer number (205506720).

Almost surely, 2^1552241321 is an apocalyptic number.

It is an amenable number.

1552241321 is a deficient number, since it is larger than the sum of its proper divisors (91812439).

1552241321 is a wasteful number, since it uses less digits than its factorization.

1552241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28023.

The product of its digits is 2400, while the sum is 26.

The square root of 1552241321 is about 39398.4938925335. The cubic root of 1552241321 is about 1157.8520797950.

Adding to 1552241321 its reverse (1231422551), we get a palindrome (2783663872).

The spelling of 1552241321 in words is "one billion, five hundred fifty-two million, two hundred forty-one thousand, three hundred twenty-one".