20288601 has 12 divisors (see below), whose sum is σ = 30251520. Its totient is φ = 13089240.

The previous prime is 20288557. The next prime is 20288621. The reversal of 20288601 is 10688202.

It is not a de Polignac number, because 20288601 - 2⁷ = 20288473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20288621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36081 + ... + 36638.

It is an arithmetic number, because the mean of its divisors is an integer number (2520960).

Almost surely, 2^20288601 is an apocalyptic number.

It is an amenable number.

20288601 is a deficient number, since it is larger than the sum of its proper divisors (9962919).

20288601 is a wasteful number, since it uses less digits than its factorization.

20288601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72756 (or 72753 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 20288601 is about 4504.2869579990. The cubic root of 20288601 is about 272.7411707766.

The spelling of 20288601 in words is "twenty million, two hundred eighty-eight thousand, six hundred one".