1955325986 has 32 divisors (see below), whose sum is σ = 3211790400. Its totient is φ = 889237440.

The previous prime is 1955325947. The next prime is 1955325991. The reversal of 1955325986 is 6895235591.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194561 + ... + 204363.

It is an arithmetic number, because the mean of its divisors is an integer number (100368450).

Almost surely, 2^1955325986 is an apocalyptic number.

1955325986 is a deficient number, since it is larger than the sum of its proper divisors (1256464414).

1955325986 is a wasteful number, since it uses less digits than its factorization.

1955325986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10034.

The product of its digits is 2916000, while the sum is 53.

The square root of 1955325986 is about 44219.0681267708. The cubic root of 1955325986 is about 1250.4693674133.

The spelling of 1955325986 in words is "one billion, nine hundred fifty-five million, three hundred twenty-five thousand, nine hundred eighty-six".