1253553523 has 2 divisors, whose sum is σ = 1253553524. Its totient is φ = 1253553522.

The previous prime is 1253553467. The next prime is 1253553527. The reversal of 1253553523 is 3253553521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1253553523 - 2⁹ = 1253553011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253553527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626776761 + 626776762.

It is an arithmetic number, because the mean of its divisors is an integer number (626776762).

Almost surely, 2^1253553523 is an apocalyptic number.

1253553523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253553523 is an equidigital number, since it uses as much as digits as its factorization.

1253553523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 34.

The square root of 1253553523 is about 35405.5577981763. The cubic root of 1253553523 is about 1078.2371570085.

The spelling of 1253553523 in words is "one billion, two hundred fifty-three million, five hundred fifty-three thousand, five hundred twenty-three".