403081225 has 12 divisors (see below), whose sum is σ = 500298460. Its totient is φ = 322156800.

The previous prime is 403081223. The next prime is 403081249. The reversal of 403081225 is 522180304.

403081225 = 14196² + 14197².

It can be written as a sum of positive squares in 6 ways, for example, as 196756729 + 206324496 = 14027^2 + 14364^2 .

It is not a de Polignac number, because 403081225 - 2¹ = 403081223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 403081225.

It is not an unprimeable number, because it can be changed into a prime (403081223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21085 + ... + 35365.

Almost surely, 2^403081225 is an apocalyptic number.

403081225 is the 14197-th centered square number.

It is an amenable number.

403081225 is a deficient number, since it is larger than the sum of its proper divisors (97217235).

403081225 is a wasteful number, since it uses less digits than its factorization.

403081225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15420 (or 15415 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 403081225 is about 20076.8828506818. The cubic root of 403081225 is about 738.6933509584.

The spelling of 403081225 in words is "four hundred three million, eighty-one thousand, two hundred twenty-five".