1552342321 has 8 divisors (see below), whose sum is σ = 1570693824. Its totient is φ = 1534098960.

The previous prime is 1552342307. The next prime is 1552342331. The reversal of 1552342321 is 1232432551.

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 1552342321 - 2⁹ = 1552341809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1552342321.

It is not an unprimeable number, because it can be changed into a prime (1552342331) 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, 2026 + ... + 55756.

It is an arithmetic number, because the mean of its divisors is an integer number (196336728).

Almost surely, 2^1552342321 is an apocalyptic number.

It is an amenable number.

1552342321 is a deficient number, since it is larger than the sum of its proper divisors (18351503).

1552342321 is a wasteful number, since it uses less digits than its factorization.

1552342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54071.

The product of its digits is 7200, while the sum is 28.

The square root of 1552342321 is about 39399.7756465694. The cubic root of 1552342321 is about 1157.8771919822.

Adding to 1552342321 its reverse (1232432551), we get a palindrome (2784774872).

The spelling of 1552342321 in words is "one billion, five hundred fifty-two million, three hundred forty-two thousand, three hundred twenty-one".