3778525 has 6 divisors (see below), whose sum is σ = 4685402. Its totient is φ = 3022800.

The previous prime is 3778517. The next prime is 3778531. The reversal of 3778525 is 5258773.

It can be written as a sum of positive squares in 3 ways, for example, as 881721 + 2896804 = 939^2 + 1702^2 .

It is not a de Polignac number, because 3778525 - 2³ = 3778517 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, 75546 + ... + 75595.

Almost surely, 2^3778525 is an apocalyptic number.

It is an amenable number.

3778525 is a deficient number, since it is larger than the sum of its proper divisors (906877).

3778525 is a wasteful number, since it uses less digits than its factorization.

3778525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151151 (or 151146 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 3778525 is about 1943.8428434418. The cubic root of 3778525 is about 155.7545587031.

It can be divided in two parts, 37785 and 25, that multiplied together give a triangular number (944625 = T₁₃₇₄).

The spelling of 3778525 in words is "three million, seven hundred seventy-eight thousand, five hundred twenty-five".