1552145565 has 16 divisors (see below), whose sum is σ = 2496305088. Its totient is φ = 823520256.

The previous prime is 1552145563. The next prime is 1552145629. The reversal of 1552145565 is 5655412551.

It is not a de Polignac number, because 1552145565 - 2¹ = 1552145563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552145563) 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 15 ways as a sum of consecutive naturals, for example, 265179 + ... + 270968.

It is an arithmetic number, because the mean of its divisors is an integer number (156019068).

Almost surely, 2^1552145565 is an apocalyptic number.

1552145565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1552145565 is a deficient number, since it is larger than the sum of its proper divisors (944159523).

1552145565 is a wasteful number, since it uses less digits than its factorization.

1552145565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536348.

The product of its digits is 150000, while the sum is 39.

The square root of 1552145565 is about 39397.2786496733. The cubic root of 1552145565 is about 1157.8282704465.

The spelling of 1552145565 in words is "one billion, five hundred fifty-two million, one hundred forty-five thousand, five hundred sixty-five".