51975601329 has 16 divisors (see below), whose sum is σ = 69423449472. Its totient is φ = 34589119488.

The previous prime is 51975601303. The next prime is 51975601343. The reversal of 51975601329 is 92310657915.

It is not a de Polignac number, because 51975601329 - 2³² = 47680634033 is a prime.

It is a super-2 number, since 2×51975601329² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51975605329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8728017 + ... + 8733969.

It is an arithmetic number, because the mean of its divisors is an integer number (4338965592).

Almost surely, 2^51975601329 is an apocalyptic number.

It is an amenable number.

51975601329 is a deficient number, since it is larger than the sum of its proper divisors (17447848143).

51975601329 is a wasteful number, since it uses less digits than its factorization.

51975601329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616.

The product of its (nonzero) digits is 510300, while the sum is 48.

The spelling of 51975601329 in words is "fifty-one billion, nine hundred seventy-five million, six hundred one thousand, three hundred twenty-nine".