51952815371 has 4 divisors (see below), whose sum is σ = 55008863352. Its totient is φ = 48896767392.

The previous prime is 51952815353. The next prime is 51952815391. The reversal of 51952815371 is 17351825915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17351825915 = 5 ⋅3470365183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51952815371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51952815391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528023965 + ... + 1528023998.

It is an arithmetic number, because the mean of its divisors is an integer number (13752215838).

Almost surely, 2^51952815371 is an apocalyptic number.

51952815371 is a deficient number, since it is larger than the sum of its proper divisors (3056047981).

51952815371 is a wasteful number, since it uses less digits than its factorization.

51952815371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056047980.

The product of its digits is 378000, while the sum is 47.

The spelling of 51952815371 in words is "fifty-one billion, nine hundred fifty-two million, eight hundred fifteen thousand, three hundred seventy-one".