202664225 has 24 divisors (see below), whose sum is σ = 267190488. Its totient is φ = 151961600.

The previous prime is 202664221. The next prime is 202664249. The reversal of 202664225 is 522466202.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 529 + 202663696 = 23^2 + 14236^2 .

It is not a de Polignac number, because 202664225 - 2² = 202664221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202664221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118577 + ... + 120273.

It is an arithmetic number, because the mean of its divisors is an integer number (11132937).

Almost surely, 2^202664225 is an apocalyptic number.

202664225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202664225 is a deficient number, since it is larger than the sum of its proper divisors (64526263).

202664225 is a wasteful number, since it uses less digits than its factorization.

202664225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 202664225 is about 14236.0185796451. The cubic root of 202664225 is about 587.3888487474.

The spelling of 202664225 in words is "two hundred two million, six hundred sixty-four thousand, two hundred twenty-five".