425245578 has 8 divisors (see below), whose sum is σ = 850491168. Its totient is φ = 141748524.

The previous prime is 425245573. The next prime is 425245607. The reversal of 425245578 is 875542524.

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

425245578 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (425245573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35437126 + ... + 35437137.

It is an arithmetic number, because the mean of its divisors is an integer number (106311396).

Almost surely, 2^425245578 is an apocalyptic number.

425245578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425245578 is a wasteful number, since it uses less digits than its factorization.

425245578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70874268.

The product of its digits is 448000, while the sum is 42.

The square root of 425245578 is about 20621.4834092991. The cubic root of 425245578 is about 751.9920836744.

The spelling of 425245578 in words is "four hundred twenty-five million, two hundred forty-five thousand, five hundred seventy-eight".