42551441401 has 12 divisors (see below), whose sum is σ = 48743872192. Its totient is φ = 36387469296.

The previous prime is 42551441369. The next prime is 42551441509. The reversal of 42551441401 is 10414415524.

It is not a de Polignac number, because 42551441401 - 2⁵ = 42551441369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42551447401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12042231 + ... + 12045763.

Almost surely, 2^42551441401 is an apocalyptic number.

It is an amenable number.

42551441401 is a deficient number, since it is larger than the sum of its proper divisors (6192430791).

42551441401 is an frugal number, since it uses more digits than its factorization.

42551441401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 42551441401 its reverse (10414415524), we get a palindrome (52965856925).

The spelling of 42551441401 in words is "forty-two billion, five hundred fifty-one million, four hundred forty-one thousand, four hundred one".