20525002 has 8 divisors (see below), whose sum is σ = 31133700. Its totient is φ = 10147104.

The previous prime is 20524991. The next prime is 20525009. The reversal of 20525002 is 20052502.

It can be written as a sum of positive squares in 2 ways, for example, as 17631601 + 2893401 = 4199^2 + 1701^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20525009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57477 + ... + 57832.

Almost surely, 2^20525002 is an apocalyptic number.

20525002 is a deficient number, since it is larger than the sum of its proper divisors (10608698).

20525002 is a wasteful number, since it uses less digits than its factorization.

20525002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115400.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 20525002 is about 4530.4527367582. The cubic root of 20525002 is about 273.7964015781.

Adding to 20525002 its reverse (20052502), we get a palindrome (40577504).

It can be divided in two parts, 2052500 and 2, that added together give a palindrome (2052502).

The spelling of 20525002 in words is "twenty million, five hundred twenty-five thousand, two".