1500725449 has 2 divisors, whose sum is σ = 1500725450. Its totient is φ = 1500725448.

The previous prime is 1500725381. The next prime is 1500725453. The reversal of 1500725449 is 9445270051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1069747849 + 430977600 = 32707^2 + 20760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1500725449 - 2¹¹ = 1500723401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1500725489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750362724 + 750362725.

It is an arithmetic number, because the mean of its divisors is an integer number (750362725).

Almost surely, 2^1500725449 is an apocalyptic number.

It is an amenable number.

1500725449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500725449 is an equidigital number, since it uses as much as digits as its factorization.

1500725449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1500725449 is about 38739.1978363001. The cubic root of 1500725449 is about 1144.8987532120.

The spelling of 1500725449 in words is "one billion, five hundred million, seven hundred twenty-five thousand, four hundred forty-nine".