20552073225 has 48 divisors (see below), whose sum is σ = 34249480512. Its totient is φ = 10874223360.

The previous prime is 20552073181. The next prime is 20552073247. The reversal of 20552073225 is 52237025502.

It is not a de Polignac number, because 20552073225 - 2¹⁴ = 20552056841 is a prime.

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, 11927214 + ... + 11928936.

It is an arithmetic number, because the mean of its divisors is an integer number (713530844).

Almost surely, 2^20552073225 is an apocalyptic number.

20552073225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20552073225 is a deficient number, since it is larger than the sum of its proper divisors (13697407287).

20552073225 is a wasteful number, since it uses less digits than its factorization.

20552073225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

Adding to 20552073225 its reverse (52237025502), we get a palindrome (72789098727).

The spelling of 20552073225 in words is "twenty billion, five hundred fifty-two million, seventy-three thousand, two hundred twenty-five".