20152075 has 12 divisors (see below), whose sum is σ = 25056928. Its totient is φ = 16077600.

The previous prime is 20152073. The next prime is 20152127. The reversal of 20152075 is 57025102.

It is not a de Polignac number, because 20152075 - 2¹ = 20152073 is a prime.

It is a super-2 number, since 2×20152075² = 812212253611250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20152073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10705 + ... + 12445.

Almost surely, 2^20152075 is an apocalyptic number.

20152075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20152075 is a deficient number, since it is larger than the sum of its proper divisors (4904853).

20152075 is a wasteful number, since it uses less digits than its factorization.

20152075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 20152075 is about 4489.1062584884. The cubic root of 20152075 is about 272.1280169812.

Adding to 20152075 its reverse (57025102), we get a palindrome (77177177).

The spelling of 20152075 in words is "twenty million, one hundred fifty-two thousand, seventy-five".