1955408423 has 2 divisors, whose sum is σ = 1955408424. Its totient is φ = 1955408422.

The previous prime is 1955408383. The next prime is 1955408453. The reversal of 1955408423 is 3248045591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1955408423 - 2¹² = 1955404327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955408453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977704211 + 977704212.

It is an arithmetic number, because the mean of its divisors is an integer number (977704212).

Almost surely, 2^1955408423 is an apocalyptic number.

1955408423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955408423 is an equidigital number, since it uses as much as digits as its factorization.

1955408423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 1955408423 is about 44220.0002600633. Note that the first 3 decimals coincide. The cubic root of 1955408423 is about 1250.4869405265.

The spelling of 1955408423 in words is "one billion, nine hundred fifty-five million, four hundred eight thousand, four hundred twenty-three".