1253732503 has 2 divisors, whose sum is σ = 1253732504. Its totient is φ = 1253732502.

The previous prime is 1253732479. The next prime is 1253732521. The reversal of 1253732503 is 3052373521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1253732503 - 2⁵ = 1253732471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253732603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626866251 + 626866252.

It is an arithmetic number, because the mean of its divisors is an integer number (626866252).

Almost surely, 2^1253732503 is an apocalyptic number.

1253732503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253732503 is an equidigital number, since it uses as much as digits as its factorization.

1253732503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 1253732503 is about 35408.0852772358. The cubic root of 1253732503 is about 1078.2884707868.

The spelling of 1253732503 in words is "one billion, two hundred fifty-three million, seven hundred thirty-two thousand, five hundred three".