20253527 has 8 divisors (see below), whose sum is σ = 23211936. Its totient is φ = 17311392.

The previous prime is 20253521. The next prime is 20253539. The reversal of 20253527 is 72535202.

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

It is not a de Polignac number, because 20253527 - 2¹⁰ = 20252503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20253496 and 20253505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253521) 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, 1268 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (2901492).

Almost surely, 2^20253527 is an apocalyptic number.

20253527 is a deficient number, since it is larger than the sum of its proper divisors (2958409).

20253527 is an equidigital number, since it uses as much as digits as its factorization.

20253527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 20253527 is about 4500.3918718263. The cubic root of 20253527 is about 272.5839126588.

Adding to 20253527 its reverse (72535202), we get a palindrome (92788729).

The spelling of 20253527 in words is "twenty million, two hundred fifty-three thousand, five hundred twenty-seven".