102403200025 has 81 divisors (see below), whose sum is σ = 152083956573. Its totient is φ = 68199465600.

The previous prime is 102403200019. The next prime is 102403200037. The reversal of 102403200025 is 520002304201.

The square root of 102403200025 is 320005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 43103157769 + 59300042256 = 207613^2 + 243516^2 .

It is not a de Polignac number, because 102403200025 - 2¹⁹ = 102402675737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102403199975 and 102403200011.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 459207064 + ... + 459207286.

Almost surely, 2^102403200025 is an apocalyptic number.

102403200025 is the 320005-th square number.

102403200025 is the 160003-rd centered octagonal number.

It is an amenable number.

102403200025 is a deficient number, since it is larger than the sum of its proper divisors (49680756548).

102403200025 is an frugal number, since it uses more digits than its factorization.

102403200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 102403200025 its reverse (520002304201), we get a palindrome (622405504226).

The spelling of 102403200025 in words is "one hundred two billion, four hundred three million, two hundred thousand, twenty-five".