1955996539 has 8 divisors (see below), whose sum is σ = 2251742688. Its totient is φ = 1664329920.

The previous prime is 1955996531. The next prime is 1955996543. The reversal of 1955996539 is 9356995591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1955996539 - 2³ = 1955996531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955996531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018852 + ... + 1020769.

It is an arithmetic number, because the mean of its divisors is an integer number (281467836).

Almost surely, 2^1955996539 is an apocalyptic number.

1955996539 is a deficient number, since it is larger than the sum of its proper divisors (295746149).

1955996539 is a wasteful number, since it uses less digits than its factorization.

1955996539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039765.

The product of its digits is 14762250, while the sum is 61.

The square root of 1955996539 is about 44226.6496470171. The cubic root of 1955996539 is about 1250.6122950135.

The spelling of 1955996539 in words is "one billion, nine hundred fifty-five million, nine hundred ninety-six thousand, five hundred thirty-nine".