1955995429 has 2 divisors, whose sum is σ = 1955995430. Its totient is φ = 1955995428.

The previous prime is 1955995427. The next prime is 1955995501. The reversal of 1955995429 is 9245995591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149549025 + 806446404 = 33905^2 + 28398^2 .

It is a cyclic number.

It is not a de Polignac number, because 1955995429 - 2¹ = 1955995427 is a prime.

Together with 1955995427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955995421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977997714 + 977997715.

It is an arithmetic number, because the mean of its divisors is an integer number (977997715).

Almost surely, 2^1955995429 is an apocalyptic number.

It is an amenable number.

1955995429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955995429 is an equidigital number, since it uses as much as digits as its factorization.

1955995429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6561000, while the sum is 58.

The square root of 1955995429 is about 44226.6370980205. The cubic root of 1955995429 is about 1250.6120584453.

The spelling of 1955995429 in words is "one billion, nine hundred fifty-five million, nine hundred ninety-five thousand, four hundred twenty-nine".