4902561 has 12 divisors (see below), whose sum is σ = 7167888. Its totient is φ = 3228504.

The previous prime is 4902539. The next prime is 4902563. The reversal of 4902561 is 1652094.

It is not a de Polignac number, because 4902561 - 2⁵ = 4902529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4902563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2535 + ... + 4028.

It is an arithmetic number, because the mean of its divisors is an integer number (597324).

Almost surely, 2^4902561 is an apocalyptic number.

It is an amenable number.

4902561 is a deficient number, since it is larger than the sum of its proper divisors (2265327).

4902561 is a wasteful number, since it uses less digits than its factorization.

4902561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652 (or 6649 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 4902561 is about 2214.1727574875. The cubic root of 4902561 is about 169.8795109315.

The spelling of 4902561 in words is "four million, nine hundred two thousand, five hundred sixty-one".