5561994 has 16 divisors (see below), whose sum is σ = 11170368. Its totient is φ = 1846272.

The previous prime is 5561993. The next prime is 5561999. The reversal of 5561994 is 4991655.

It is not an unprimeable number, because it can be changed into a prime (5561993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 3345.

It is an arithmetic number, because the mean of its divisors is an integer number (698148).

Almost surely, 2^5561994 is an apocalyptic number.

5561994 is an abundant number, since it is smaller than the sum of its proper divisors (5608374).

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

5561994 is a wasteful number, since it uses less digits than its factorization.

5561994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869.

The product of its digits is 48600, while the sum is 39.

The square root of 5561994 is about 2358.3880087891. The cubic root of 5561994 is about 177.1781537985.

It can be divided in two parts, 5561 and 994, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 5561994 in words is "five million, five hundred sixty-one thousand, nine hundred ninety-four".