3555545623 has 4 divisors (see below), whose sum is σ = 4063480720. Its totient is φ = 3047610528.

The previous prime is 3555545621. The next prime is 3555545641. The reversal of 3555545623 is 3265455553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3265455553 = 431 ⋅7576463.

It is a cyclic number.

It is not a de Polignac number, because 3555545623 - 2¹ = 3555545621 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 3555545623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3555545621) 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, 253967538 + ... + 253967551.

It is an arithmetic number, because the mean of its divisors is an integer number (1015870180).

Almost surely, 2^3555545623 is an apocalyptic number.

3555545623 is a deficient number, since it is larger than the sum of its proper divisors (507935097).

3555545623 is an equidigital number, since it uses as much as digits as its factorization.

3555545623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507935096.

The product of its digits is 1350000, while the sum is 43.

The square root of 3555545623 is about 59628.3961129259. The cubic root of 3555545623 is about 1526.2842354942.

The spelling of 3555545623 in words is "three billion, five hundred fifty-five million, five hundred forty-five thousand, six hundred twenty-three".