3501113561 has 4 divisors (see below), whose sum is σ = 3819396624. Its totient is φ = 3182830500.

The previous prime is 3501113503. The next prime is 3501113579. The reversal of 3501113561 is 1653111053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3501113561 - 2²⁶ = 3434004697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3501113561.

It is not an unprimeable number, because it can be changed into a prime (3501113461) 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, 159141515 + ... + 159141536.

It is an arithmetic number, because the mean of its divisors is an integer number (954849156).

Almost surely, 2^3501113561 is an apocalyptic number.

It is an amenable number.

3501113561 is a deficient number, since it is larger than the sum of its proper divisors (318283063).

3501113561 is a wasteful number, since it uses less digits than its factorization.

3501113561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318283062.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 3501113561 is about 59170.2083907096. The cubic root of 3501113561 is about 1518.4554891999.

The spelling of 3501113561 in words is "three billion, five hundred one million, one hundred thirteen thousand, five hundred sixty-one".