201923520425 has 36 divisors (see below), whose sum is σ = 275285206140. Its totient is φ = 146816947200.

The previous prime is 201923520373. The next prime is 201923520437. The reversal of 201923520425 is 524025329102.

201923520425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 35700968809 + 166222551616 = 188947^2 + 407704^2 .

It is not a de Polignac number, because 201923520425 - 2⁶ = 201923520361 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 35 ways as a sum of consecutive naturals, for example, 20664941 + ... + 20674709.

Almost surely, 2^201923520425 is an apocalyptic number.

201923520425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201923520425 is a deficient number, since it is larger than the sum of its proper divisors (73361685715).

201923520425 is a wasteful number, since it uses less digits than its factorization.

201923520425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16634 (or 16618 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 201923520425 its reverse (524025329102), we get a palindrome (725948849527).

The spelling of 201923520425 in words is "two hundred one billion, nine hundred twenty-three million, five hundred twenty thousand, four hundred twenty-five".