42254423551 has 8 divisors (see below), whose sum is σ = 45913126400. Its totient is φ = 38739199320.

The previous prime is 42254423521. The next prime is 42254423557. The reversal of 42254423551 is 15532445224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42254423551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42254423551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42254423557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35869041 + ... + 35870218.

It is an arithmetic number, because the mean of its divisors is an integer number (5739140800).

Almost surely, 2^42254423551 is an apocalyptic number.

42254423551 is a deficient number, since it is larger than the sum of its proper divisors (3658702849).

42254423551 is a wasteful number, since it uses less digits than its factorization.

42254423551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71739309.

The product of its digits is 192000, while the sum is 37.

Adding to 42254423551 its reverse (15532445224), we get a palindrome (57786868775).

The spelling of 42254423551 in words is "forty-two billion, two hundred fifty-four million, four hundred twenty-three thousand, five hundred fifty-one".