51001520343 has 4 divisors (see below), whose sum is σ = 68002027128. Its totient is φ = 34001013560.

The previous prime is 51001520303. The next prime is 51001520347. The reversal of 51001520343 is 34302510015.

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 51001520343 - 2¹³ = 51001512151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51001520347) 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, 8500253388 + ... + 8500253393.

It is an arithmetic number, because the mean of its divisors is an integer number (17000506782).

Almost surely, 2^51001520343 is an apocalyptic number.

51001520343 is a deficient number, since it is larger than the sum of its proper divisors (17000506785).

51001520343 is a wasteful number, since it uses less digits than its factorization.

51001520343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17000506784.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 51001520343 in words is "fifty-one billion, one million, five hundred twenty thousand, three hundred forty-three".