20572562 has 8 divisors (see below), whose sum is σ = 30890496. Its totient is φ = 10275732.

The previous prime is 20572553. The next prime is 20572597. The reversal of 20572562 is 26527502.

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

It is an unprimeable number.

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, 2558 + ... + 6905.

It is an arithmetic number, because the mean of its divisors is an integer number (3861312).

Almost surely, 2^20572562 is an apocalyptic number.

20572562 is a deficient number, since it is larger than the sum of its proper divisors (10317934).

20572562 is a wasteful number, since it uses less digits than its factorization.

20572562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 20572562 is about 4535.6986231451. The cubic root of 20572562 is about 274.0077164076.

The spelling of 20572562 in words is "twenty million, five hundred seventy-two thousand, five hundred sixty-two".