3513220520 has 16 divisors (see below), whose sum is σ = 7904746260. Its totient is φ = 1405288192.

The previous prime is 3513220507. The next prime is 3513220523. The reversal of 3513220520 is 250223153.

It can be written as a sum of positive squares in 2 ways, for example, as 3483124324 + 30096196 = 59018^2 + 5486^2 .

It is not an unprimeable number, because it can be changed into a prime (3513220523) 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, 43915217 + ... + 43915296.

Almost surely, 2^3513220520 is an apocalyptic number.

It is an amenable number.

3513220520 is an abundant number, since it is smaller than the sum of its proper divisors (4391525740).

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

3513220520 is a wasteful number, since it uses less digits than its factorization.

3513220520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87830524 (or 87830520 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 3513220520 is about 59272.4263043112. The cubic root of 3513220520 is about 1520.2037642343.

Adding to 3513220520 its reverse (250223153), we get a palindrome (3763443673).

The spelling of 3513220520 in words is "three billion, five hundred thirteen million, two hundred twenty thousand, five hundred twenty".