1925397775 has 48 divisors (see below), whose sum is σ = 2881958400. Its totient is φ = 1246527360.

The previous prime is 1925397769. The next prime is 1925397779. The reversal of 1925397775 is 5777935291.

It is not a de Polignac number, because 1925397775 - 2⁵ = 1925397743 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925397779) 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 47 ways as a sum of consecutive naturals, for example, 1192869 + ... + 1194481.

It is an arithmetic number, because the mean of its divisors is an integer number (60040800).

Almost surely, 2^1925397775 is an apocalyptic number.

1925397775 is a deficient number, since it is larger than the sum of its proper divisors (956560625).

1925397775 is a wasteful number, since it uses less digits than its factorization.

1925397775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 2003 counting only the distinct ones).

The product of its digits is 4167450, while the sum is 55.

The square root of 1925397775 is about 43879.3547696408. The cubic root of 1925397775 is about 1244.0566446758.

The spelling of 1925397775 in words is "one billion, nine hundred twenty-five million, three hundred ninety-seven thousand, seven hundred seventy-five".