425215442 has 4 divisors (see below), whose sum is σ = 637823166. Its totient is φ = 212607720.

The previous prime is 425215423. The next prime is 425215451. The reversal of 425215442 is 244512524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 417425761 + 7789681 = 20431^2 + 2791^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106303859 + ... + 106303862.

Almost surely, 2^425215442 is an apocalyptic number.

425215442 is a deficient number, since it is larger than the sum of its proper divisors (212607724).

425215442 is a wasteful number, since it uses less digits than its factorization.

425215442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212607723.

The product of its digits is 12800, while the sum is 29.

The square root of 425215442 is about 20620.7527020718. The cubic root of 425215442 is about 751.9743193754.

Adding to 425215442 its reverse (244512524), we get a palindrome (669727966).

The spelling of 425215442 in words is "four hundred twenty-five million, two hundred fifteen thousand, four hundred forty-two".