208130425 has 6 divisors (see below), whose sum is σ = 258081758. Its totient is φ = 166504320.

The previous prime is 208130423. The next prime is 208130431. The reversal of 208130425 is 524031802.

It can be written as a sum of positive squares in 3 ways, for example, as 13778944 + 194351481 = 3712^2 + 13941^2 .

It is not a de Polignac number, because 208130425 - 2¹ = 208130423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 8325217 = 208130425 / (2 + 0 + 8 + 1 + 3 + 0 + 4 + 2 + 5).

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 208130425.

It is not an unprimeable number, because it can be changed into a prime (208130423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4162584 + ... + 4162633.

Almost surely, 2^208130425 is an apocalyptic number.

208130425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

208130425 is a deficient number, since it is larger than the sum of its proper divisors (49951333).

208130425 is an equidigital number, since it uses as much as digits as its factorization.

208130425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325227 (or 8325222 counting only the distinct ones).

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

The square root of 208130425 is about 14426.7260665752. The cubic root of 208130425 is about 592.6230286873.

The spelling of 208130425 in words is "two hundred eight million, one hundred thirty thousand, four hundred twenty-five".