1253415503 has 8 divisors (see below), whose sum is σ = 1319929200. Its totient is φ = 1186956288.

The previous prime is 1253415487. The next prime is 1253415511. The reversal of 1253415503 is 3055143521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253415503 - 2⁴ = 1253415487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253415563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38825 + ... + 63357.

It is an arithmetic number, because the mean of its divisors is an integer number (164991150).

Almost surely, 2^1253415503 is an apocalyptic number.

1253415503 is a deficient number, since it is larger than the sum of its proper divisors (66513697).

1253415503 is a wasteful number, since it uses less digits than its factorization.

1253415503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27241.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1253415503 is about 35403.6086155070. The cubic root of 1253415503 is about 1078.1975831752.

The spelling of 1253415503 in words is "one billion, two hundred fifty-three million, four hundred fifteen thousand, five hundred three".