51253140245 has 8 divisors (see below), whose sum is σ = 61540673184. Its totient is φ = 40977908944.

The previous prime is 51253140229. The next prime is 51253140271. The reversal of 51253140245 is 54204135215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51253140245 - 2⁴ = 51253140229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3066239 + ... + 3082908.

It is an arithmetic number, because the mean of its divisors is an integer number (7692584148).

Almost surely, 2^51253140245 is an apocalyptic number.

It is an amenable number.

51253140245 is a deficient number, since it is larger than the sum of its proper divisors (10287532939).

51253140245 is a wasteful number, since it uses less digits than its factorization.

51253140245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6150819.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 51253140245 in words is "fifty-one billion, two hundred fifty-three million, one hundred forty thousand, two hundred forty-five".