51534251326541 has 4 divisors (see below), whose sum is σ = 51539603319900. Its totient is φ = 51528899333184.

The previous prime is 51534251326499. The next prime is 51534251326543. The reversal of 51534251326541 is 14562315243515.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48982711525225 + 2551539801316 = 6998765^2 + 1597354^2 .

It is a cyclic number.

It is not a de Polignac number, because 51534251326541 - 2¹⁰ = 51534251325517 is a prime.

It is a super-2 number, since 2×51534251326541² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51534251326543) 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, 2675982236 + ... + 2676001493.

It is an arithmetic number, because the mean of its divisors is an integer number (12884900829975).

Almost surely, 2^{51534251326541} is an apocalyptic number.

It is an amenable number.

51534251326541 is a deficient number, since it is larger than the sum of its proper divisors (5351993359).

51534251326541 is an equidigital number, since it uses as much as digits as its factorization.

51534251326541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351993358.

The product of its digits is 2160000, while the sum is 47.

The spelling of 51534251326541 in words is "fifty-one trillion, five hundred thirty-four billion, two hundred fifty-one million, three hundred twenty-six thousand, five hundred forty-one".