425712985 has 8 divisors (see below), whose sum is σ = 511139016. Its totient is φ = 340381440.

The previous prime is 425712983. The next prime is 425713039. The reversal of 425712985 is 589217524.

It can be written as a sum of positive squares in 4 ways, for example, as 363609 + 425349376 = 603^2 + 20624^2 .

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

It is not a de Polignac number, because 425712985 - 2¹ = 425712983 is a prime.

It is a super-2 number, since 2×425712985² = 362463091195220450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425712983) by changing a digit.

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, 13296 + ... + 32065.

It is an arithmetic number, because the mean of its divisors is an integer number (63892377).

Almost surely, 2^425712985 is an apocalyptic number.

It is an amenable number.

425712985 is a deficient number, since it is larger than the sum of its proper divisors (85426031).

425712985 is a wasteful number, since it uses less digits than its factorization.

425712985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47243.

The product of its digits is 201600, while the sum is 43.

The square root of 425712985 is about 20632.8133079326. The cubic root of 425712985 is about 752.2674991694.

It can be divided in two parts, 425712 and 985, that multiplied together give a triangular number (419326320 = T₂₈₉₅₉).

The spelling of 425712985 in words is "four hundred twenty-five million, seven hundred twelve thousand, nine hundred eighty-five".