3125645717 has 2 divisors, whose sum is σ = 3125645718. Its totient is φ = 3125645716.

The previous prime is 3125645693. The next prime is 3125645729. The reversal of 3125645717 is 7175465213.

3125645717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2800420561 + 325225156 = 52919^2 + 18034^2 .

It is a cyclic number.

It is not a de Polignac number, because 3125645717 - 2⁸ = 3125645461 is a prime.

It is a super-2 number, since 2×3125645717² = 19539322296400888178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3125645767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562822858 + 1562822859.

It is an arithmetic number, because the mean of its divisors is an integer number (1562822859).

Almost surely, 2^3125645717 is an apocalyptic number.

It is an amenable number.

3125645717 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125645717 is an equidigital number, since it uses as much as digits as its factorization.

3125645717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 41.

The square root of 3125645717 is about 55907.4746076050. The cubic root of 3125645717 is about 1462.1095601961.

The spelling of 3125645717 in words is "three billion, one hundred twenty-five million, six hundred forty-five thousand, seven hundred seventeen".