20534601 has 8 divisors (see below), whose sum is σ = 27523584. Its totient is φ = 13617680.

The previous prime is 20534597. The next prime is 20534603. The reversal of 20534601 is 10643502.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20534601 - 2² = 20534597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20534603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17346 + ... + 18491.

It is an arithmetic number, because the mean of its divisors is an integer number (3440448).

Almost surely, 2^20534601 is an apocalyptic number.

It is an amenable number.

20534601 is a deficient number, since it is larger than the sum of its proper divisors (6988983).

20534601 is a wasteful number, since it uses less digits than its factorization.

20534601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36031.

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

The square root of 20534601 is about 4531.5119993221. The cubic root of 20534601 is about 273.8390773686.

The spelling of 20534601 in words is "twenty million, five hundred thirty-four thousand, six hundred one".