1532253649 has 2 divisors, whose sum is σ = 1532253650. Its totient is φ = 1532253648.

The previous prime is 1532253643. The next prime is 1532253677. The reversal of 1532253649 is 9463522351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1146838225 + 385415424 = 33865^2 + 19632^2 .

It is an emirp because it is prime and its reverse (9463522351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1532253649 - 2⁷ = 1532253521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1532253643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766126824 + 766126825.

It is an arithmetic number, because the mean of its divisors is an integer number (766126825).

Almost surely, 2^1532253649 is an apocalyptic number.

It is an amenable number.

1532253649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532253649 is an equidigital number, since it uses as much as digits as its factorization.

1532253649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 40.

The square root of 1532253649 is about 39144.0116620665. The cubic root of 1532253649 is about 1152.8608416770.

The spelling of 1532253649 in words is "one billion, five hundred thirty-two million, two hundred fifty-three thousand, six hundred forty-nine".