3745425505 has 4 divisors (see below), whose sum is σ = 4494510612. Its totient is φ = 2996340400.

The previous prime is 3745425479. The next prime is 3745425553. The reversal of 3745425505 is 5055245473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5055245473 = 181 ⋅27929533.

It can be written as a sum of positive squares in 2 ways, for example, as 492662416 + 3252763089 = 22196^2 + 57033^2 .

It is not a de Polignac number, because 3745425505 - 2⁹ = 3745424993 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374542546 + ... + 374542555.

It is an arithmetic number, because the mean of its divisors is an integer number (1123627653).

Almost surely, 2^3745425505 is an apocalyptic number.

It is an amenable number.

3745425505 is a deficient number, since it is larger than the sum of its proper divisors (749085107).

3745425505 is an equidigital number, since it uses as much as digits as its factorization.

3745425505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749085106.

The product of its (nonzero) digits is 420000, while the sum is 40.

The square root of 3745425505 is about 61199.8815766828. The cubic root of 3745425505 is about 1552.9842617230.

The spelling of 3745425505 in words is "three billion, seven hundred forty-five million, four hundred twenty-five thousand, five hundred five".