20575004 has 6 divisors (see below), whose sum is σ = 36006264. Its totient is φ = 10287500.

The previous prime is 20574973. The next prime is 20575031. The reversal of 20575004 is 40057502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571872 + ... + 2571879.

It is an arithmetic number, because the mean of its divisors is an integer number (6001044).

Almost surely, 2^20575004 is an apocalyptic number.

It is an amenable number.

20575004 is a deficient number, since it is larger than the sum of its proper divisors (15431260).

20575004 is a wasteful number, since it uses less digits than its factorization.

20575004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143755 (or 5143753 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 20575004 is about 4535.9678129369. The cubic root of 20575004 is about 274.0185577144.

The spelling of 20575004 in words is "twenty million, five hundred seventy-five thousand, four".