1955596513 has 12 divisors (see below), whose sum is σ = 2242166508. Its totient is φ = 1698977280.

The previous prime is 1955596507. The next prime is 1955596537. The reversal of 1955596513 is 3156955591.

It can be written as a sum of positive squares in 6 ways, for example, as 3017169 + 1952579344 = 1737^2 + 44188^2 .

It is not a de Polignac number, because 1955596513 - 2⁹ = 1955596001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955596583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337468 + ... + 343213.

It is an arithmetic number, because the mean of its divisors is an integer number (186847209).

Almost surely, 2^1955596513 is an apocalyptic number.

1955596513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1955596513 is a deficient number, since it is larger than the sum of its proper divisors (286569995).

1955596513 is a wasteful number, since it uses less digits than its factorization.

1955596513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680724 (or 680711 counting only the distinct ones).

The product of its digits is 911250, while the sum is 49.

The square root of 1955596513 is about 44222.1269615110. The cubic root of 1955596513 is about 1250.5270338637.

The spelling of 1955596513 in words is "one billion, nine hundred fifty-five million, five hundred ninety-six thousand, five hundred thirteen".