4975561 has 4 divisors (see below), whose sum is σ = 5081472. Its totient is φ = 4869652.

The previous prime is 4975547. The next prime is 4975571. The reversal of 4975561 is 1655794.

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 4975561 - 2⁹ = 4975049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4975561.

It is not an unprimeable number, because it can be changed into a prime (4975541) 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, 52885 + ... + 52978.

It is an arithmetic number, because the mean of its divisors is an integer number (1270368).

Almost surely, 2^4975561 is an apocalyptic number.

It is an amenable number.

4975561 is a deficient number, since it is larger than the sum of its proper divisors (105911).

4975561 is a wasteful number, since it uses less digits than its factorization.

4975561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105910.

The product of its digits is 37800, while the sum is 37.

The square root of 4975561 is about 2230.5965569775. The cubic root of 4975561 is about 170.7185388352.

Adding to 4975561 its product of digits (37800), we get a triangular number (5013361 = T₃₁₆₆).

The spelling of 4975561 in words is "four million, nine hundred seventy-five thousand, five hundred sixty-one".