25246330442 has 8 divisors (see below), whose sum is σ = 37871714916. Its totient is φ = 12622425472.

The previous prime is 25246330441. The next prime is 25246330453. The reversal of 25246330442 is 24403364252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24957364441 + 288966001 = 157979^2 + 16999^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25246330441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326183 + ... + 396090.

Almost surely, 2^25246330442 is an apocalyptic number.

25246330442 is a deficient number, since it is larger than the sum of its proper divisors (12625384474).

25246330442 is a wasteful number, since it uses less digits than its factorization.

25246330442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739752.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 25246330442 its reverse (24403364252), we get a palindrome (49649694694).

The spelling of 25246330442 in words is "twenty-five billion, two hundred forty-six million, three hundred thirty thousand, four hundred forty-two".