5020661 has 4 divisors (see below), whose sum is σ = 5316012. Its totient is φ = 4725312.

The previous prime is 5020657. The next prime is 5020669. The reversal of 5020661 is 1660205.

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 4622500 + 398161 = 2150^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 5020661 - 2² = 5020657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5020669) 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, 147650 + ... + 147683.

It is an arithmetic number, because the mean of its divisors is an integer number (1329003).

Almost surely, 2^5020661 is an apocalyptic number.

It is an amenable number.

5020661 is a deficient number, since it is larger than the sum of its proper divisors (295351).

5020661 is a wasteful number, since it uses less digits than its factorization.

5020661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295350.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 5020661 is about 2240.6831547544. The cubic root of 5020661 is about 171.2328030754.

Adding to 5020661 its reverse (1660205), we get a palindrome (6680866).

The spelling of 5020661 in words is "five million, twenty thousand, six hundred sixty-one".