202505923 has 2 divisors, whose sum is σ = 202505924. Its totient is φ = 202505922.

The previous prime is 202505911. The next prime is 202506001. The reversal of 202505923 is 329505202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202505923 - 2¹³ = 202497731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202505891 and 202505900.

It is not a weakly prime, because it can be changed into another prime (202506923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101252961 + 101252962.

It is an arithmetic number, because the mean of its divisors is an integer number (101252962).

Almost surely, 2^202505923 is an apocalyptic number.

202505923 is a deficient number, since it is larger than the sum of its proper divisors (1).

202505923 is an equidigital number, since it uses as much as digits as its factorization.

202505923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 202505923 is about 14230.4575822424. The cubic root of 202505923 is about 587.2358714926.

The spelling of 202505923 in words is "two hundred two million, five hundred five thousand, nine hundred twenty-three".