1253532503 has 2 divisors, whose sum is σ = 1253532504. Its totient is φ = 1253532502.

The previous prime is 1253532487. The next prime is 1253532541. The reversal of 1253532503 is 3052353521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1253532503 - 2⁴ = 1253532487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253532563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626766251 + 626766252.

It is an arithmetic number, because the mean of its divisors is an integer number (626766252).

Almost surely, 2^1253532503 is an apocalyptic number.

1253532503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253532503 is an equidigital number, since it uses as much as digits as its factorization.

1253532503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 1253532503 is about 35405.2609508813. The cubic root of 1253532503 is about 1078.2311302291.

The spelling of 1253532503 in words is "one billion, two hundred fifty-three million, five hundred thirty-two thousand, five hundred three".