42450242251 has 8 divisors (see below), whose sum is σ = 43263421920. Its totient is φ = 41637515712.

The previous prime is 42450242249. The next prime is 42450242257. The reversal of 42450242251 is 15224205424.

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

It is not a de Polignac number, because 42450242251 - 2¹ = 42450242249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42450242257) 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, 78970 + ... + 301888.

It is an arithmetic number, because the mean of its divisors is an integer number (5407927740).

Almost surely, 2^42450242251 is an apocalyptic number.

42450242251 is a deficient number, since it is larger than the sum of its proper divisors (813179669).

42450242251 is a wasteful number, since it uses less digits than its factorization.

42450242251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226565.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 42450242251 its reverse (15224205424), we get a palindrome (57674447675).

The spelling of 42450242251 in words is "forty-two billion, four hundred fifty million, two hundred forty-two thousand, two hundred fifty-one".