20352525 has 12 divisors (see below), whose sum is σ = 33649632. Its totient is φ = 10854640.

The previous prime is 20352517. The next prime is 20352529. The reversal of 20352525 is 52525302.

It is not a de Polignac number, because 20352525 - 2³ = 20352517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20352495 and 20352504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352529) 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, 135609 + ... + 135758.

It is an arithmetic number, because the mean of its divisors is an integer number (2804136).

Almost surely, 2^20352525 is an apocalyptic number.

20352525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20352525 is a deficient number, since it is larger than the sum of its proper divisors (13297107).

20352525 is a wasteful number, since it uses less digits than its factorization.

20352525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271380 (or 271375 counting only the distinct ones).

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

The square root of 20352525 is about 4511.3772841561. The cubic root of 20352525 is about 273.0273154919.

Adding to 20352525 its reverse (52525302), we get a palindrome (72877827).

It can be divided in two parts, 2035 and 2525, that added together give a triangular number (4560 = T₉₅).

The spelling of 20352525 in words is "twenty million, three hundred fifty-two thousand, five hundred twenty-five".