3788525581 has 2 divisors, whose sum is σ = 3788525582. Its totient is φ = 3788525580.

The previous prime is 3788525563. The next prime is 3788525627. The reversal of 3788525581 is 1855258873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2279203081 + 1509322500 = 47741^2 + 38850^2 .

It is a cyclic number.

It is not a de Polignac number, because 3788525581 - 2¹³ = 3788517389 is a prime.

It is a super-2 number, since 2×3788525581² = 28705852155782775122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3788525561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1894262790 + 1894262791.

It is an arithmetic number, because the mean of its divisors is an integer number (1894262791).

Almost surely, 2^3788525581 is an apocalyptic number.

It is an amenable number.

3788525581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3788525581 is an equidigital number, since it uses as much as digits as its factorization.

3788525581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688000, while the sum is 52.

The square root of 3788525581 is about 61550.9998375331. Note that the first 3 decimals coincide. The cubic root of 3788525581 is about 1558.9184895125.

The spelling of 3788525581 in words is "three billion, seven hundred eighty-eight million, five hundred twenty-five thousand, five hundred eighty-one".