51435031259 has 2 divisors, whose sum is σ = 51435031260. Its totient is φ = 51435031258.

The previous prime is 51435031253. The next prime is 51435031303. The reversal of 51435031259 is 95213053415.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51435031259 is a prime.

It is a super-2 number, since 2×51435031259² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51435031253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717515629 + 25717515630.

It is an arithmetic number, because the mean of its divisors is an integer number (25717515630).

Almost surely, 2^51435031259 is an apocalyptic number.

51435031259 is a deficient number, since it is larger than the sum of its proper divisors (1).

51435031259 is an equidigital number, since it uses as much as digits as its factorization.

51435031259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 51435031259 in words is "fifty-one billion, four hundred thirty-five million, thirty-one thousand, two hundred fifty-nine".