20159572 has 24 divisors (see below), whose sum is σ = 35957376. Its totient is φ = 9888288.

The previous prime is 20159543. The next prime is 20159591. The reversal of 20159572 is 27595102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68658 + ... + 68950.

It is an arithmetic number, because the mean of its divisors is an integer number (1498224).

Almost surely, 2^20159572 is an apocalyptic number.

It is an amenable number.

20159572 is a deficient number, since it is larger than the sum of its proper divisors (15797804).

20159572 is a wasteful number, since it uses less digits than its factorization.

20159572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 20159572 is about 4489.9412022876. The cubic root of 20159572 is about 272.1617585984.

The spelling of 20159572 in words is "twenty million, one hundred fifty-nine thousand, five hundred seventy-two".