425194425 has 18 divisors (see below), whose sum is σ = 761570862. Its totient is φ = 226770240.

The previous prime is 425194411. The next prime is 425194439. The reversal of 425194425 is 524491524.

It is a happy number.

425194425 is a `hidden beast` number, since 42 + 5 + 194 + 425 = 666.

It is an interprime number because it is at equal distance from previous prime (425194411) and next prime (425194439).

It can be written as a sum of positive squares in 3 ways, for example, as 133194681 + 291999744 = 11541^2 + 17088^2 .

It is not a de Polignac number, because 425194425 - 2¹¹ = 425192377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425194425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 944652 + ... + 945101.

Almost surely, 2^425194425 is an apocalyptic number.

425194425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425194425 is a deficient number, since it is larger than the sum of its proper divisors (336376437).

425194425 is a wasteful number, since it uses less digits than its factorization.

425194425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889769 (or 1889761 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 425194425 is about 20620.2430878009. The cubic root of 425194425 is about 751.9619299659.

The spelling of 425194425 in words is "four hundred twenty-five million, one hundred ninety-four thousand, four hundred twenty-five".