1253541503235 has 96 divisors (see below), whose sum is σ = 2398513489920. Its totient is φ = 547538883840.

The previous prime is 1253541503231. The next prime is 1253541503261. The reversal of 1253541503235 is 5323051453521.

It is not a de Polignac number, because 1253541503235 - 2² = 1253541503231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1253541503193 and 1253541503202.

It is not an unprimeable number, because it can be changed into a prime (1253541503231) 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 in 95 ways as a sum of consecutive naturals, for example, 7892869 + ... + 8050121.

It is an arithmetic number, because the mean of its divisors is an integer number (24984515520).

Almost surely, 2^{1253541503235} is an apocalyptic number.

1253541503235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1253541503235 is a deficient number, since it is larger than the sum of its proper divisors (1144971986685).

1253541503235 is a wasteful number, since it uses less digits than its factorization.

1253541503235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157409 (or 157378 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 1253541503235 its reverse (5323051453521), we get a palindrome (6576592956756).

The spelling of 1253541503235 in words is "one trillion, two hundred fifty-three billion, five hundred forty-one million, five hundred three thousand, two hundred thirty-five".