20502606 has 8 divisors (see below), whose sum is σ = 41005224. Its totient is φ = 6834200.

The previous prime is 20502589. The next prime is 20502631. The reversal of 20502606 is 60620502.

It is a sphenic number, since it is the product of 3 distinct primes.

20502606 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708545 + ... + 1708556.

It is an arithmetic number, because the mean of its divisors is an integer number (5125653).

Almost surely, 2^20502606 is an apocalyptic number.

20502606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20502606 is a wasteful number, since it uses less digits than its factorization.

20502606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417106.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20502606 is about 4527.9803444803. The cubic root of 20502606 is about 273.6967803801.

It can be divided in two parts, 2050 and 2606, that added together give a triangular number (4656 = T₉₆).

The spelling of 20502606 in words is "twenty million, five hundred two thousand, six hundred six".