425542266 has 48 divisors (see below), whose sum is σ = 978868800. Its totient is φ = 133144704.

The previous prime is 425542253. The next prime is 425542267. The reversal of 425542266 is 662245524.

425542266 is a `hidden beast` number, since 42 + 554 + 2 + 2 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 425542266.

It is not an unprimeable number, because it can be changed into a prime (425542267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126555 + ... + 129873.

It is an arithmetic number, because the mean of its divisors is an integer number (20393100).

Almost surely, 2^425542266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425542266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489434400).

425542266 is an abundant number, since it is smaller than the sum of its proper divisors (553326534).

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

425542266 is a wasteful number, since it uses less digits than its factorization.

425542266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763 (or 3760 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 425542266 is about 20628.6758178997. The cubic root of 425542266 is about 752.1669278685.

The spelling of 425542266 in words is "four hundred twenty-five million, five hundred forty-two thousand, two hundred sixty-six".