20152273 has 8 divisors (see below), whose sum is σ = 20437920. Its totient is φ = 19868640.

The previous prime is 20152271. The next prime is 20152277. The reversal of 20152273 is 37225102.

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 20152273 - 2¹ = 20152271 is a prime.

It is a super-2 number, since 2×20152273² = 812228214133058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20152271) 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, 35133 + ... + 35701.

It is an arithmetic number, because the mean of its divisors is an integer number (2554740).

Almost surely, 2^20152273 is an apocalyptic number.

It is an amenable number.

20152273 is a deficient number, since it is larger than the sum of its proper divisors (285647).

20152273 is a wasteful number, since it uses less digits than its factorization.

20152273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20152273 is about 4489.1283118218. The cubic root of 20152273 is about 272.1289082239.

Adding to 20152273 its reverse (37225102), we get a palindrome (57377375).

The spelling of 20152273 in words is "twenty million, one hundred fifty-two thousand, two hundred seventy-three".