20882251 has 8 divisors (see below), whose sum is σ = 23214464. Its totient is φ = 18653760.

The previous prime is 20882209. The next prime is 20882261. The reversal of 20882251 is 15228802.

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 20882251 - 2¹³ = 20874059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20882261) 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, 25506 + ... + 26311.

It is an arithmetic number, because the mean of its divisors is an integer number (2901808).

Almost surely, 2^20882251 is an apocalyptic number.

20882251 is a deficient number, since it is larger than the sum of its proper divisors (2332213).

20882251 is a wasteful number, since it uses less digits than its factorization.

20882251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51861.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 20882251 is about 4569.7101658639. The cubic root of 20882251 is about 275.3757991682.

The spelling of 20882251 in words is "twenty million, eight hundred eighty-two thousand, two hundred fifty-one".