20825301 has 16 divisors (see below), whose sum is σ = 31883264. Its totient is φ = 11844144.

The previous prime is 20825297. The next prime is 20825341. The reversal of 20825301 is 10352802.

It is not a de Polignac number, because 20825301 - 2² = 20825297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20825341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2460 + ... + 6906.

It is an arithmetic number, because the mean of its divisors is an integer number (1992704).

Almost surely, 2^20825301 is an apocalyptic number.

20825301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20825301 is a deficient number, since it is larger than the sum of its proper divisors (11057963).

20825301 is a wasteful number, since it uses less digits than its factorization.

20825301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20825301 is about 4563.4746630172. The cubic root of 20825301 is about 275.1252366218.

The spelling of 20825301 in words is "twenty million, eight hundred twenty-five thousand, three hundred one".