1945493825 has 12 divisors (see below), whose sum is σ = 2631722928. Its totient is φ = 1414904400.

The previous prime is 1945493819. The next prime is 1945493839. The reversal of 1945493825 is 5283945491.

It is not a de Polignac number, because 1945493825 - 2⁶ = 1945493761 is a prime.

It is a super-2 number, since 2×1945493825² = 7569892446226261250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3536987 + ... + 3537536.

It is an arithmetic number, because the mean of its divisors is an integer number (219310244).

Almost surely, 2^1945493825 is an apocalyptic number.

It is an amenable number.

1945493825 is a deficient number, since it is larger than the sum of its proper divisors (686229103).

1945493825 is a wasteful number, since it uses less digits than its factorization.

1945493825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074544 (or 7074539 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 50.

The square root of 1945493825 is about 44107.7524365049. The cubic root of 1945493825 is about 1248.3698911201.

The spelling of 1945493825 in words is "one billion, nine hundred forty-five million, four hundred ninety-three thousand, eight hundred twenty-five".