51451400029 has 2 divisors, whose sum is σ = 51451400030. Its totient is φ = 51451400028.

The previous prime is 51451399991. The next prime is 51451400053. The reversal of 51451400029 is 92000415415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26448516900 + 25002883129 = 162630^2 + 158123^2 .

It is a cyclic number.

It is not a de Polignac number, because 51451400029 - 2³⁵ = 17091661661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51451400629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25725700014 + 25725700015.

It is an arithmetic number, because the mean of its divisors is an integer number (25725700015).

Almost surely, 2^51451400029 is an apocalyptic number.

It is an amenable number.

51451400029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51451400029 is an equidigital number, since it uses as much as digits as its factorization.

51451400029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 51451400029 in words is "fifty-one billion, four hundred fifty-one million, four hundred thousand, twenty-nine".