51872053501 has 8 divisors (see below), whose sum is σ = 54654135200. Its totient is φ = 49095169200.

The previous prime is 51872053481. The next prime is 51872053507. The reversal of 51872053501 is 10535027815.

It is a happy number.

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 51872053501 - 2⁹ = 51872052989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51872053507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278846 + ... + 1318783.

It is an arithmetic number, because the mean of its divisors is an integer number (6831766900).

Almost surely, 2^51872053501 is an apocalyptic number.

It is an amenable number.

51872053501 is a deficient number, since it is larger than the sum of its proper divisors (2782081699).

51872053501 is a wasteful number, since it uses less digits than its factorization.

51872053501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598699.

The product of its (nonzero) digits is 42000, while the sum is 37.

The spelling of 51872053501 in words is "fifty-one billion, eight hundred seventy-two million, fifty-three thousand, five hundred one".