51970129153 has 2 divisors, whose sum is σ = 51970129154. Its totient is φ = 51970129152.

The previous prime is 51970129109. The next prime is 51970129171. The reversal of 51970129153 is 35192107915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36337128129 + 15633001024 = 190623^2 + 125032^2 .

It is a cyclic number.

It is not a de Polignac number, because 51970129153 - 2⁹ = 51970128641 is a prime.

It is not a weakly prime, because it can be changed into another prime (51970129103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25985064576 + 25985064577.

It is an arithmetic number, because the mean of its divisors is an integer number (25985064577).

Almost surely, 2^51970129153 is an apocalyptic number.

It is an amenable number.

51970129153 is a deficient number, since it is larger than the sum of its proper divisors (1).

51970129153 is an equidigital number, since it uses as much as digits as its factorization.

51970129153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85050, while the sum is 43.

The spelling of 51970129153 in words is "fifty-one billion, nine hundred seventy million, one hundred twenty-nine thousand, one hundred fifty-three".