20524533225 has 72 divisors (see below), whose sum is σ = 40835511360. Its totient is φ = 9059057280.

The previous prime is 20524533217. The next prime is 20524533241. The reversal of 20524533225 is 52233542502.

It is not a de Polignac number, because 20524533225 - 2³ = 20524533217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10284 + ... + 202866.

It is an arithmetic number, because the mean of its divisors is an integer number (567159880).

Almost surely, 2^20524533225 is an apocalyptic number.

20524533225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20524533225 is a deficient number, since it is larger than the sum of its proper divisors (20310978135).

20524533225 is a wasteful number, since it uses less digits than its factorization.

20524533225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192639 (or 192627 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

The spelling of 20524533225 in words is "twenty billion, five hundred twenty-four million, five hundred thirty-three thousand, two hundred twenty-five".