202520425 has 12 divisors (see below), whose sum is σ = 257913676. Its totient is φ = 157636800.

The previous prime is 202520407. The next prime is 202520447. The reversal of 202520425 is 524025202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 13402921 + 189117504 = 3661^2 + 13752^2 .

It is not a de Polignac number, because 202520425 - 2⁹ = 202519913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202520396 and 202520405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108546 + ... + 110395.

Almost surely, 2^202520425 is an apocalyptic number.

202520425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202520425 is a deficient number, since it is larger than the sum of its proper divisors (55393251).

202520425 is a wasteful number, since it uses less digits than its factorization.

202520425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218988 (or 218983 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 202520425 is about 14230.9671140088. The cubic root of 202520425 is about 587.2498890107.

Adding to 202520425 its reverse (524025202), we get a palindrome (726545627).

The spelling of 202520425 in words is "two hundred two million, five hundred twenty thousand, four hundred twenty-five".