42001053541 has 4 divisors (see below), whose sum is σ = 42977822272. Its totient is φ = 41024284812.

The previous prime is 42001053469. The next prime is 42001053559. The reversal of 42001053541 is 14535010024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42001053541 - 2¹¹ = 42001051493 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 (42001053571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488384301 + ... + 488384386.

It is an arithmetic number, because the mean of its divisors is an integer number (10744455568).

Almost surely, 2^42001053541 is an apocalyptic number.

It is an amenable number.

42001053541 is a deficient number, since it is larger than the sum of its proper divisors (976768731).

42001053541 is an equidigital number, since it uses as much as digits as its factorization.

42001053541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976768730.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 42001053541 its reverse (14535010024), we get a palindrome (56536063565).

The spelling of 42001053541 in words is "forty-two billion, one million, fifty-three thousand, five hundred forty-one".