425164445 has 8 divisors (see below), whose sum is σ = 510504120. Its totient is φ = 339927040.

The previous prime is 425164409. The next prime is 425164457. The reversal of 425164445 is 544461524.

It can be written as a sum of positive squares in 4 ways, for example, as 60621796 + 364542649 = 7786^2 + 19093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-425164445 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 16100 + ... + 33309.

It is an arithmetic number, because the mean of its divisors is an integer number (63813015).

Almost surely, 2^425164445 is an apocalyptic number.

It is an amenable number.

425164445 is a deficient number, since it is larger than the sum of its proper divisors (85339675).

425164445 is a wasteful number, since it uses less digits than its factorization.

425164445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51135.

The product of its digits is 76800, while the sum is 35.

The square root of 425164445 is about 20619.5161194437. The cubic root of 425164445 is about 751.9442562092.

The spelling of 425164445 in words is "four hundred twenty-five million, one hundred sixty-four thousand, four hundred forty-five".