3531051561 has 16 divisors (see below), whose sum is σ = 4958964800. Its totient is φ = 2228741568.

The previous prime is 3531051533. The next prime is 3531051577. The reversal of 3531051561 is 1651501353.

3531051561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3531051561 - 2¹⁵ = 3531018793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3531051061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76575 + ... + 113691.

It is an arithmetic number, because the mean of its divisors is an integer number (309935300).

Almost surely, 2^3531051561 is an apocalyptic number.

It is an amenable number.

3531051561 is a deficient number, since it is larger than the sum of its proper divisors (1427913239).

3531051561 is a wasteful number, since it uses less digits than its factorization.

3531051561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38808.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 3531051561 is about 59422.6519182710. The cubic root of 3531051561 is about 1522.7713120583.

The spelling of 3531051561 in words is "three billion, five hundred thirty-one million, fifty-one thousand, five hundred sixty-one".