1552401323 has 24 divisors (see below), whose sum is σ = 1764990864. Its totient is φ = 1363602240.

The previous prime is 1552401293. The next prime is 1552401329. The reversal of 1552401323 is 3231042551.

It is a happy number.

It is not a de Polignac number, because 1552401323 - 2¹⁸ = 1552139179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1552401292 and 1552401301.

It is not an unprimeable number, because it can be changed into a prime (1552401329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427865 + ... + 431477.

It is an arithmetic number, because the mean of its divisors is an integer number (73541286).

Almost surely, 2^1552401323 is an apocalyptic number.

1552401323 is a deficient number, since it is larger than the sum of its proper divisors (212589541).

1552401323 is a wasteful number, since it uses less digits than its factorization.

1552401323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3744 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1552401323 is about 39400.5244000635. The cubic root of 1552401323 is about 1157.8918614709.

Adding to 1552401323 its reverse (3231042551), we get a palindrome (4783443874).

The spelling of 1552401323 in words is "one billion, five hundred fifty-two million, four hundred one thousand, three hundred twenty-three".