203008819225 has 27 divisors (see below), whose sum is σ = 254626941207. Its totient is φ = 160559738880.

The previous prime is 203008819183. The next prime is 203008819249. The reversal of 203008819225 is 522918800302.

The square root of 203008819225 is 450565.

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

It can be written as a sum of positive squares in 13 ways, for example, as 202425306889 + 583512336 = 449917^2 + 24156^2 .

It is a de Polignac number, because none of the positive numbers 2^k-203008819225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 218523561 + ... + 218524489.

Almost surely, 2^203008819225 is an apocalyptic number.

203008819225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

203008819225 is the 450565-th square number.

203008819225 is the 225283-rd centered octagonal number.

It is an amenable number.

203008819225 is a deficient number, since it is larger than the sum of its proper divisors (51618121982).

203008819225 is an frugal number, since it uses more digits than its factorization.

203008819225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 203008819225 in words is "two hundred three billion, eight million, eight hundred nineteen thousand, two hundred twenty-five".