20152435 has 4 divisors (see below), whose sum is σ = 24182928. Its totient is φ = 16121944.

The previous prime is 20152421. The next prime is 20152441. The reversal of 20152435 is 53425102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20152435 - 2¹⁷ = 20021363 is a prime.

It is a super-2 number, since 2×20152435² = 812241272858450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015239 + ... + 2015248.

It is an arithmetic number, because the mean of its divisors is an integer number (6045732).

Almost surely, 2^20152435 is an apocalyptic number.

20152435 is a deficient number, since it is larger than the sum of its proper divisors (4030493).

20152435 is an equidigital number, since it uses as much as digits as its factorization.

20152435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030492.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20152435 is about 4489.1463553776. The cubic root of 20152435 is about 272.1296374182.

Adding to 20152435 its reverse (53425102), we get a palindrome (73577537).

The spelling of 20152435 in words is "twenty million, one hundred fifty-two thousand, four hundred thirty-five".