1995373855 has 32 divisors (see below), whose sum is σ = 2647935360. Its totient is φ = 1438187520.

The previous prime is 1995373843. The next prime is 1995373873. The reversal of 1995373855 is 5583735991.

It is not a de Polignac number, because 1995373855 - 2⁷ = 1995373727 is a prime.

It is a super-2 number, since 2×1995373855² = 7963033642435122050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1995373796 and 1995373805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129439 + ... + 144031.

It is an arithmetic number, because the mean of its divisors is an integer number (82747980).

Almost surely, 2^1995373855 is an apocalyptic number.

1995373855 is a deficient number, since it is larger than the sum of its proper divisors (652561505).

1995373855 is a wasteful number, since it uses less digits than its factorization.

1995373855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14691.

The product of its digits is 5103000, while the sum is 55.

The square root of 1995373855 is about 44669.6077327751. The cubic root of 1995373855 is about 1258.9488703577.

The spelling of 1995373855 in words is "one billion, nine hundred ninety-five million, three hundred seventy-three thousand, eight hundred fifty-five".