10402603225 has 18 divisors (see below), whose sum is σ = 15005226174. Its totient is φ = 7133212800.

The previous prime is 10402603223. The next prime is 10402603247. The reversal of 10402603225 is 52230620401.

It can be written as a sum of positive squares in 3 ways, for example, as 53406864 + 10349196361 = 7308^2 + 101731^2 .

It is not a de Polignac number, because 10402603225 - 2¹ = 10402603223 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10402603225.

It is not an unprimeable number, because it can be changed into a prime (10402603223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4244736 + ... + 4247185.

Almost surely, 2^10402603225 is an apocalyptic number.

It is an amenable number.

10402603225 is a deficient number, since it is larger than the sum of its proper divisors (4602622949).

10402603225 is an equidigital number, since it uses as much as digits as its factorization.

10402603225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491945 (or 8491933 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 10402603225 in words is "ten billion, four hundred two million, six hundred three thousand, two hundred twenty-five".