51244530533 has 16 divisors (see below), whose sum is σ = 64148474880. Its totient is φ = 39914601216.

The previous prime is 51244530509. The next prime is 51244530553. The reversal of 51244530533 is 33503544215.

It is a happy number.

It is not a de Polignac number, because 51244530533 - 2²⁸ = 50976095077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51244530493 and 51244530502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51244530503) 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 15 ways as a sum of consecutive naturals, for example, 7421141 + ... + 7428042.

It is an arithmetic number, because the mean of its divisors is an integer number (4009279680).

Almost surely, 2^51244530533 is an apocalyptic number.

It is an amenable number.

51244530533 is a deficient number, since it is larger than the sum of its proper divisors (12903944347).

51244530533 is a wasteful number, since it uses less digits than its factorization.

51244530533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14849236.

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 51244530533 in words is "fifty-one billion, two hundred forty-four million, five hundred thirty thousand, five hundred thirty-three".