51045001135541 has 4 divisors (see below), whose sum is σ = 58337144154912. Its totient is φ = 43752858116172.

The previous prime is 51045001135517. The next prime is 51045001135643. The reversal of 51045001135541 is 14553110054015.

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 51045001135541 - 2¹⁴ = 51045001119157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045001135501) 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, 3646071509675 + ... + 3646071509688.

It is an arithmetic number, because the mean of its divisors is an integer number (14584286038728).

Almost surely, 2^{51045001135541} is an apocalyptic number.

It is an amenable number.

51045001135541 is a deficient number, since it is larger than the sum of its proper divisors (7292143019371).

51045001135541 is an equidigital number, since it uses as much as digits as its factorization.

51045001135541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292143019370.

The product of its (nonzero) digits is 30000, while the sum is 35.

Adding to 51045001135541 its reverse (14553110054015), we get a palindrome (65598111189556).

The spelling of 51045001135541 in words is "fifty-one trillion, forty-five billion, one million, one hundred thirty-five thousand, five hundred forty-one".