3215552540 has 24 divisors (see below), whose sum is σ = 6767455632. Its totient is φ = 1283402880.

The previous prime is 3215552539. The next prime is 3215552573. The reversal of 3215552540 is 452555123.

It is a junction number, because it is equal to n+sod(n) for n = 3215552497 and 3215552506.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 166766 + ... + 185045.

It is an arithmetic number, because the mean of its divisors is an integer number (281977318).

Almost surely, 2^3215552540 is an apocalyptic number.

It is an amenable number.

3215552540 is an abundant number, since it is smaller than the sum of its proper divisors (3551903092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3215552540 is a wasteful number, since it uses less digits than its factorization.

3215552540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352277 (or 352275 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 3215552540 is about 56705.8422034273. The cubic root of 3215552540 is about 1475.9960775497.

The spelling of 3215552540 in words is "three billion, two hundred fifteen million, five hundred fifty-two thousand, five hundred forty".