202135322025 has 72 divisors (see below), whose sum is σ = 445596132800. Its totient is φ = 85296654720.

The previous prime is 202135322017. The next prime is 202135322027. The reversal of 202135322025 is 520223531202.

202135322025 is a `hidden beast` number, since 202 + 135 + 322 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 202135322025 - 2³ = 202135322017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202135322025.

It is not an unprimeable number, because it can be changed into a prime (202135322027) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4915675 + ... + 4956624.

Almost surely, 2^202135322025 is an apocalyptic number.

202135322025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202135322025 is an abundant number, since it is smaller than the sum of its proper divisors (243460810775).

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

202135322025 is a wasteful number, since it uses less digits than its factorization.

202135322025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872335 (or 9872327 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 202135322025 its reverse (520223531202), we get a palindrome (722358853227).

The spelling of 202135322025 in words is "two hundred two billion, one hundred thirty-five million, three hundred twenty-two thousand, twenty-five".