20535152 has 30 divisors (see below), whose sum is σ = 43736784. Its totient is φ = 9333280.

The previous prime is 20535149. The next prime is 20535157. The reversal of 20535152 is 25153502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535157) 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 5 ways as a sum of consecutive naturals, for example, 3368 + ... + 7239.

Almost surely, 2^20535152 is an apocalyptic number.

20535152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20535152 is an abundant number, since it is smaller than the sum of its proper divisors (23201632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20535152 is a wasteful number, since it uses less digits than its factorization.

20535152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637 (or 10620 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 20535152 is about 4531.5727953990. The cubic root of 20535152 is about 273.8415266327.

Adding to 20535152 its reverse (25153502), we get a palindrome (45688654).

The spelling of 20535152 in words is "twenty million, five hundred thirty-five thousand, one hundred fifty-two".