425851425 has 36 divisors (see below), whose sum is σ = 791008400. Its totient is φ = 227117520.

The previous prime is 425851339. The next prime is 425851429. The reversal of 425851425 is 524158524.

425851425 is a `hidden beast` number, since 42 + 585 + 14 + 25 = 666.

It is not a de Polignac number, because 425851425 - 2¹¹ = 425849377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425851425.

It is not an unprimeable number, because it can be changed into a prime (425851429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28975 + ... + 41124.

Almost surely, 2^425851425 is an apocalyptic number.

425851425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425851425 is a deficient number, since it is larger than the sum of its proper divisors (365156975).

425851425 is an equidigital number, since it uses as much as digits as its factorization.

425851425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70124 (or 70107 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 425851425 is about 20636.1678855353. The cubic root of 425851425 is about 752.3490350314.

The spelling of 425851425 in words is "four hundred twenty-five million, eight hundred fifty-one thousand, four hundred twenty-five".