42041240554 has 4 divisors (see below), whose sum is σ = 63061860834. Its totient is φ = 21020620276.

The previous prime is 42041240543. The next prime is 42041240617. The reversal of 42041240554 is 45504214024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41121756225 + 919484329 = 202785^2 + 30323^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510310137 + ... + 10510310140.

Almost surely, 2^42041240554 is an apocalyptic number.

42041240554 is a deficient number, since it is larger than the sum of its proper divisors (21020620280).

42041240554 is a wasteful number, since it uses less digits than its factorization.

42041240554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21020620279.

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

Adding to 42041240554 its reverse (45504214024), we get a palindrome (87545454578).

The spelling of 42041240554 in words is "forty-two billion, forty-one million, two hundred forty thousand, five hundred fifty-four".