3215545545 has 16 divisors (see below), whose sum is σ = 5173301952. Its totient is φ = 1705481280.

The previous prime is 3215545523. The next prime is 3215545577. The reversal of 3215545545 is 5455455123.

It is not a de Polignac number, because 3215545545 - 2⁵ = 3215545513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589467 + ... + 594896.

It is an arithmetic number, because the mean of its divisors is an integer number (323331372).

Almost surely, 2^3215545545 is an apocalyptic number.

It is an amenable number.

3215545545 is a deficient number, since it is larger than the sum of its proper divisors (1957756407).

3215545545 is a wasteful number, since it uses less digits than its factorization.

3215545545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184552.

The product of its digits is 300000, while the sum is 39.

The square root of 3215545545 is about 56705.7805254456. The cubic root of 3215545545 is about 1475.9950072723.

The spelling of 3215545545 in words is "three billion, two hundred fifteen million, five hundred forty-five thousand, five hundred forty-five".