20525036 has 36 divisors (see below), whose sum is σ = 41945904. Its totient is φ = 8608320.

The previous prime is 20525017. The next prime is 20525053. The reversal of 20525036 is 63052502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104090 + ... + 104286.

It is an arithmetic number, because the mean of its divisors is an integer number (1165164).

Almost surely, 2^20525036 is an apocalyptic number.

It is an amenable number.

20525036 is an abundant number, since it is smaller than the sum of its proper divisors (21420868).

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

20525036 is a wasteful number, since it uses less digits than its factorization.

20525036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20525036 is about 4530.4564891410. The cubic root of 20525036 is about 273.7965527608.

Adding to 20525036 its reverse (63052502), we get a palindrome (83577538).

The spelling of 20525036 in words is "twenty million, five hundred twenty-five thousand, thirty-six".