1552401113 has 4 divisors (see below), whose sum is σ = 1572051840. Its totient is φ = 1532750388.

The previous prime is 1552401107. The next prime is 1552401127. The reversal of 1552401113 is 3111042551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3111042551 = 17 ⋅183002503.

It is a cyclic number.

It is not a de Polignac number, because 1552401113 - 2⁶ = 1552401049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1552401133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9825245 + ... + 9825402.

It is an arithmetic number, because the mean of its divisors is an integer number (393012960).

Almost surely, 2^1552401113 is an apocalyptic number.

It is an amenable number.

1552401113 is a deficient number, since it is larger than the sum of its proper divisors (19650727).

1552401113 is an equidigital number, since it uses as much as digits as its factorization.

1552401113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650726.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1552401113 is about 39400.5217351243. The cubic root of 1552401113 is about 1157.8918092599.

Adding to 1552401113 its reverse (3111042551), we get a palindrome (4663443664).

The spelling of 1552401113 in words is "one billion, five hundred fifty-two million, four hundred one thousand, one hundred thirteen".