3605551541 has 4 divisors (see below), whose sum is σ = 3654942732. Its totient is φ = 3556160352.

The previous prime is 3605551529. The next prime is 3605551559. The reversal of 3605551541 is 1451555063.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1249905316 + 2355646225 = 35354^2 + 48535^2 .

It is a cyclic number.

It is not a de Polignac number, because 3605551541 - 2²² = 3601357237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605551841) 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, 24695486 + ... + 24695631.

It is an arithmetic number, because the mean of its divisors is an integer number (913735683).

Almost surely, 2^3605551541 is an apocalyptic number.

It is an amenable number.

3605551541 is a deficient number, since it is larger than the sum of its proper divisors (49391191).

3605551541 is an equidigital number, since it uses as much as digits as its factorization.

3605551541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49391190.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 3605551541 is about 60046.2450199844. The cubic root of 3605551541 is about 1533.4062746597.

The spelling of 3605551541 in words is "three billion, six hundred five million, five hundred fifty-one thousand, five hundred forty-one".