1825656949 has 2 divisors, whose sum is σ = 1825656950. Its totient is φ = 1825656948.

The previous prime is 1825656907. The next prime is 1825656967. The reversal of 1825656949 is 9496565281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1239532849 + 586124100 = 35207^2 + 24210^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825656949 - 2¹³ = 1825648757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1825656949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825606949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912828474 + 912828475.

It is an arithmetic number, because the mean of its divisors is an integer number (912828475).

Almost surely, 2^1825656949 is an apocalyptic number.

It is an amenable number.

1825656949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825656949 is an equidigital number, since it uses as much as digits as its factorization.

1825656949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 55.

The square root of 1825656949 is about 42727.7070412162. The cubic root of 1825656949 is about 1222.1928109914.

The spelling of 1825656949 in words is "one billion, eight hundred twenty-five million, six hundred fifty-six thousand, nine hundred forty-nine".