5561381835 has 48 divisors (see below), whose sum is σ = 10019449440. Its totient is φ = 2959338240.

The previous prime is 5561381827. The next prime is 5561381851. The reversal of 5561381835 is 5381831655.

5561381835 is a `hidden beast` number, since 5 + 561 + 3 + 8 + 1 + 83 + 5 = 666.

It is not a de Polignac number, because 5561381835 - 2³ = 5561381827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 555151 + ... + 565079.

It is an arithmetic number, because the mean of its divisors is an integer number (208738530).

Almost surely, 2^5561381835 is an apocalyptic number.

5561381835 is a deficient number, since it is larger than the sum of its proper divisors (4458067605).

5561381835 is an equidigital number, since it uses as much as digits as its factorization.

5561381835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10410 (or 10398 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 5561381835 is about 74574.6728789339. The cubic root of 5561381835 is about 1771.7165335731.

The spelling of 5561381835 in words is "five billion, five hundred sixty-one million, three hundred eighty-one thousand, eight hundred thirty-five".