5561667 has 6 divisors (see below), whose sum is σ = 8033532. Its totient is φ = 3707772.

The previous prime is 5561659. The next prime is 5561687. The reversal of 5561667 is 7661655.

It is a happy number.

It is not a de Polignac number, because 5561667 - 2³ = 5561659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5561627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308973 + ... + 308990.

It is an arithmetic number, because the mean of its divisors is an integer number (1338922).

Almost surely, 2^5561667 is an apocalyptic number.

5561667 is a deficient number, since it is larger than the sum of its proper divisors (2471865).

5561667 is a wasteful number, since it uses less digits than its factorization.

5561667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617969 (or 617966 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 5561667 is about 2358.3186807554. The cubic root of 5561667 is about 177.1746815190.

The spelling of 5561667 in words is "five million, five hundred sixty-one thousand, six hundred sixty-seven".