51133151521423 has 4 divisors (see below), whose sum is σ = 51136259369368. Its totient is φ = 51130043673480.

The previous prime is 51133151521399. The next prime is 51133151521447. The reversal of 51133151521423 is 32412515133115.

51133151521423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (51133151521399) and next prime (51133151521447).

It is a cyclic number.

It is not a de Polignac number, because 51133151521423 - 2¹³ = 51133151513231 is a prime.

It is a super-2 number, since 2×51133151521423² (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 (51133151521493) 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, 1553899293 + ... + 1553932198.

It is an arithmetic number, because the mean of its divisors is an integer number (12784064842342).

Almost surely, 2^{51133151521423} is an apocalyptic number.

51133151521423 is a deficient number, since it is larger than the sum of its proper divisors (3107847945).

51133151521423 is a wasteful number, since it uses less digits than its factorization.

51133151521423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107847944.

The product of its digits is 54000, while the sum is 37.

Adding to 51133151521423 its reverse (32412515133115), we get a palindrome (83545666654538).

The spelling of 51133151521423 in words is "fifty-one trillion, one hundred thirty-three billion, one hundred fifty-one million, five hundred twenty-one thousand, four hundred twenty-three".