202920025 has 81 divisors (see below), whose sum is σ = 330660477. Its totient is φ = 123076800.

The previous prime is 202920001. The next prime is 202920031. The reversal of 202920025 is 520029202.

The square root of 202920025 is 14245.

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 19263321 + 183656704 = 4389^2 + 13552^2 .

It is not a de Polignac number, because 202920025 - 2⁵ = 202919993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202919978 and 202920005.

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, 5484307 + ... + 5484343.

Almost surely, 2^202920025 is an apocalyptic number.

202920025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

202920025 is the 14245-th square number.

202920025 is the 7123-rd centered octagonal number.

It is an amenable number.

202920025 is a deficient number, since it is larger than the sum of its proper divisors (127740452).

202920025 is a wasteful number, since it uses less digits than its factorization.

202920025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The cubic root of 202920025 is about 587.6358762228.

Adding to 202920025 its reverse (520029202), we get a palindrome (722949227).

The spelling of 202920025 in words is "two hundred two million, nine hundred twenty thousand, twenty-five".