4961565 has 48 divisors (see below), whose sum is σ = 10358400. Its totient is φ = 2146176.

The previous prime is 4961563. The next prime is 4961587. The reversal of 4961565 is 5651694.

4961565 is a `hidden beast` number, since 4 + 96 + 1 + 565 = 666.

It is not a de Polignac number, because 4961565 - 2¹ = 4961563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4961563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5571 + ... + 6399.

It is an arithmetic number, because the mean of its divisors is an integer number (215800).

Almost surely, 2^4961565 is an apocalyptic number.

4961565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4961565 is an abundant number, since it is smaller than the sum of its proper divisors (5396835).

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

4961565 is a wasteful number, since it uses less digits than its factorization.

4961565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 863 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 4961565 is about 2227.4570702934. The cubic root of 4961565 is about 170.5583143181.

The spelling of 4961565 in words is "four million, nine hundred sixty-one thousand, five hundred sixty-five".