1253504503 has 8 divisors (see below), whose sum is σ = 1345934880. Its totient is φ = 1163151360.

The previous prime is 1253504489. The next prime is 1253504507. The reversal of 1253504503 is 3054053521.

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 1253504503 - 2⁹ = 1253503991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253504507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518058 + ... + 520471.

It is an arithmetic number, because the mean of its divisors is an integer number (168241860).

Almost surely, 2^1253504503 is an apocalyptic number.

1253504503 is a deficient number, since it is larger than the sum of its proper divisors (92430377).

1253504503 is a wasteful number, since it uses less digits than its factorization.

1253504503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038617.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1253504503 is about 35404.8655272125. The cubic root of 1253504503 is about 1078.2231020644.

It can be divided in two parts, 125 and 3504503, that added together give a triangular number (3504628 = T₂₆₄₇).

The spelling of 1253504503 in words is "one billion, two hundred fifty-three million, five hundred four thousand, five hundred three".