51525201311 has 4 divisors (see below), whose sum is σ = 51573673872. Its totient is φ = 51476728752.

The previous prime is 51525201283. The next prime is 51525201317. The reversal of 51525201311 is 11310252515.

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

It is a cyclic number.

It is not a de Polignac number, because 51525201311 - 2³⁴ = 34345332127 is a prime.

It is a super-2 number, since 2×51525201311² (a number of 22 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 (51525201317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24234686 + ... + 24236811.

It is an arithmetic number, because the mean of its divisors is an integer number (12893418468).

Almost surely, 2^51525201311 is an apocalyptic number.

51525201311 is a deficient number, since it is larger than the sum of its proper divisors (48472561).

51525201311 is a wasteful number, since it uses less digits than its factorization.

51525201311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48472560.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 51525201311 its reverse (11310252515), we get a palindrome (62835453826).

The spelling of 51525201311 in words is "fifty-one billion, five hundred twenty-five million, two hundred one thousand, three hundred eleven".