42050013545 has 8 divisors (see below), whose sum is σ = 50619198024. Its totient is φ = 33533889664.

The previous prime is 42050013541. The next prime is 42050013547. The reversal of 42050013545 is 54531005024.

It can be written as a sum of positive squares in 4 ways, for example, as 1942341184 + 40107672361 = 44072^2 + 200269^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42050013545 - 2² = 42050013541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42050013541) 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, 13263404 + ... + 13266573.

It is an arithmetic number, because the mean of its divisors is an integer number (6327399753).

Almost surely, 2^42050013545 is an apocalyptic number.

It is an amenable number.

42050013545 is a deficient number, since it is larger than the sum of its proper divisors (8569184479).

42050013545 is a wasteful number, since it uses less digits than its factorization.

42050013545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26530299.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 42050013545 its reverse (54531005024), we get a palindrome (96581018569).

The spelling of 42050013545 in words is "forty-two billion, fifty million, thirteen thousand, five hundred forty-five".