1925405811925 has 6 divisors (see below), whose sum is σ = 2387503206818. Its totient is φ = 1540324649520.

The previous prime is 1925405811839. The next prime is 1925405811949. The reversal of 1925405811925 is 5291185045291.

It can be written as a sum of positive squares in 3 ways, for example, as 154906790724 + 1770499021201 = 393582^2 + 1330601^2 .

It is not a de Polignac number, because 1925405811925 - 2³⁵ = 1891046073557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38508116214 + ... + 38508116263.

Almost surely, 2^{1925405811925} is an apocalyptic number.

It is an amenable number.

1925405811925 is a deficient number, since it is larger than the sum of its proper divisors (462097394893).

1925405811925 is an equidigital number, since it uses as much as digits as its factorization.

1925405811925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77016232487 (or 77016232482 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 52.

The spelling of 1925405811925 in words is "one trillion, nine hundred twenty-five billion, four hundred five million, eight hundred eleven thousand, nine hundred twenty-five".