202102425 has 48 divisors (see below), whose sum is σ = 424318080. Its totient is φ = 92387520.

The previous prime is 202102393. The next prime is 202102429. The reversal of 202102425 is 524201202.

202102425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202102425 - 2⁵ = 202102393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202102398 and 202102407.

It is not an unprimeable number, because it can be changed into a prime (202102429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16662 + ... + 26111.

It is an arithmetic number, because the mean of its divisors is an integer number (8839960).

Almost surely, 2^202102425 is an apocalyptic number.

202102425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202102425 is an abundant number, since it is smaller than the sum of its proper divisors (222215655).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202102425 is a wasteful number, since it uses less digits than its factorization.

202102425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42799 (or 42788 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 202102425 is about 14216.2732458264. The cubic root of 202102425 is about 586.8455848846.

Adding to 202102425 its reverse (524201202), we get a palindrome (726303627).

The spelling of 202102425 in words is "two hundred two million, one hundred two thousand, four hundred twenty-five".