202698290956225 has 45 divisors (see below), whose sum is σ = 259811753100515. Its totient is φ = 156874746687600.

The previous prime is 202698290956219. The next prime is 202698290956229. The reversal of 202698290956225 is 522659092896202.

The square root of 202698290956225 is 14237215.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 72971384744241 + 129726906211984 = 8542329^2 + 11389772^2 .

It is not a de Polignac number, because 202698290956225 - 2²⁹ = 202697754085313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202698290956229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 68409816594 + ... + 68409819556.

Almost surely, 2^{202698290956225} is an apocalyptic number.

202698290956225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

202698290956225 is the 14237215-th square number.

202698290956225 is the 7118608-th centered octagonal number.

It is an amenable number.

202698290956225 is a deficient number, since it is larger than the sum of its proper divisors (57113462144290).

202698290956225 is an frugal number, since it uses more digits than its factorization.

202698290956225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 67.

The spelling of 202698290956225 in words is "two hundred two trillion, six hundred ninety-eight billion, two hundred ninety million, nine hundred fifty-six thousand, two hundred twenty-five".