1825465949 has 2 divisors, whose sum is σ = 1825465950. Its totient is φ = 1825465948.

The previous prime is 1825465937. The next prime is 1825465991. The reversal of 1825465949 is 9495645281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1753096900 + 72369049 = 41870^2 + 8507^2 .

It is an emirp because it is prime and its reverse (9495645281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1825465949 - 2⁸ = 1825465693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1825465949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825461949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912732974 + 912732975.

It is an arithmetic number, because the mean of its divisors is an integer number (912732975).

Almost surely, 2^1825465949 is an apocalyptic number.

It is an amenable number.

1825465949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825465949 is an equidigital number, since it uses as much as digits as its factorization.

1825465949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 53.

The square root of 1825465949 is about 42725.4718990908. The cubic root of 1825465949 is about 1222.1501876190.

The spelling of 1825465949 in words is "one billion, eight hundred twenty-five million, four hundred sixty-five thousand, nine hundred forty-nine".