5020409 has 4 divisors (see below), whose sum is σ = 5142900. Its totient is φ = 4897920.

The previous prime is 5020403. The next prime is 5020441. The reversal of 5020409 is 9040205.

5020409 = T₂₂₂ + T₂₂₃ + ... + T₃₄₄.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9040205 = 5 ⋅1808041.

It can be written as a sum of positive squares in 2 ways, for example, as 193600 + 4826809 = 440^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 5020409 - 2¹² = 5016313 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 (5020403) 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 3 ways as a sum of consecutive naturals, for example, 61184 + ... + 61265.

It is an arithmetic number, because the mean of its divisors is an integer number (1285725).

Almost surely, 2^5020409 is an apocalyptic number.

It is an amenable number.

5020409 is a deficient number, since it is larger than the sum of its proper divisors (122491).

5020409 is a wasteful number, since it uses less digits than its factorization.

5020409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122490.

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

The square root of 5020409 is about 2240.6269211986. The cubic root of 5020409 is about 171.2299381546.

The spelling of 5020409 in words is "five million, twenty thousand, four hundred nine".