20052291 has 8 divisors (see below), whose sum is σ = 30555904. Its totient is φ = 11458440.

The previous prime is 20052289. The next prime is 20052293. The reversal of 20052291 is 19225002.

It is an interprime number because it is at equal distance from previous prime (20052289) and next prime (20052293).

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

It is not a de Polignac number, because 20052291 - 2¹ = 20052289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 954871 = 20052291 / (2 + 0 + 0 + 5 + 2 + 2 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20052293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477415 + ... + 477456.

It is an arithmetic number, because the mean of its divisors is an integer number (3819488).

Almost surely, 2^20052291 is an apocalyptic number.

20052291 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20052291 is a deficient number, since it is larger than the sum of its proper divisors (10503613).

20052291 is an equidigital number, since it uses as much as digits as its factorization.

20052291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954881.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20052291 is about 4477.9784501491. The cubic root of 20052291 is about 271.6781218065.

Adding to 20052291 its reverse (19225002), we get a palindrome (39277293).

The spelling of 20052291 in words is "twenty million, fifty-two thousand, two hundred ninety-one".