4855561 has 4 divisors (see below), whose sum is σ = 5012224. Its totient is φ = 4698900.

The previous prime is 4855559. The next prime is 4855567. The reversal of 4855561 is 1655584.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4855561 - 2¹ = 4855559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4855567) 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, 78285 + ... + 78346.

It is an arithmetic number, because the mean of its divisors is an integer number (1253056).

Almost surely, 2^4855561 is an apocalyptic number.

It is an amenable number.

4855561 is a deficient number, since it is larger than the sum of its proper divisors (156663).

4855561 is a wasteful number, since it uses less digits than its factorization.

4855561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156662.

The product of its digits is 24000, while the sum is 34.

The square root of 4855561 is about 2203.5337528615. The cubic root of 4855561 is about 169.3348983914.

The spelling of 4855561 in words is "four million, eight hundred fifty-five thousand, five hundred sixty-one".