5021761 has 4 divisors (see below), whose sum is σ = 5036500. Its totient is φ = 5007024.

The previous prime is 5021729. The next prime is 5021771. The reversal of 5021761 is 1671205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2560000 + 2461761 = 1600^2 + 1569^2 .

It is a cyclic number.

It is not a de Polignac number, because 5021761 - 2⁵ = 5021729 is a prime.

It is a super-2 number, since 2×5021761² = 50436167082242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5021701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6846 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (1259125).

Almost surely, 2^5021761 is an apocalyptic number.

It is an amenable number.

5021761 is a deficient number, since it is larger than the sum of its proper divisors (14739).

5021761 is a wasteful number, since it uses less digits than its factorization.

5021761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14738.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 5021761 is about 2240.9286021647. The cubic root of 5021761 is about 171.2453075596.

Adding to 5021761 its reverse (1671205), we get a palindrome (6692966).

The spelling of 5021761 in words is "five million, twenty-one thousand, seven hundred sixty-one".