20235525 has 48 divisors (see below), whose sum is σ = 36158400. Its totient is φ = 9948160.

The previous prime is 20235511. The next prime is 20235547. The reversal of 20235525 is 52553202.

It is not a de Polignac number, because 20235525 - 2⁵ = 20235493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20235495 and 20235504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75091 + ... + 75359.

It is an arithmetic number, because the mean of its divisors is an integer number (753300).

Almost surely, 2^20235525 is an apocalyptic number.

20235525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20235525 is a deficient number, since it is larger than the sum of its proper divisors (15922875).

20235525 is a wasteful number, since it uses less digits than its factorization.

20235525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 20235525 is about 4498.3913791488. The cubic root of 20235525 is about 272.5031282081.

Adding to 20235525 its reverse (52553202), we get a palindrome (72788727).

The spelling of 20235525 in words is "twenty million, two hundred thirty-five thousand, five hundred twenty-five".