1253122500005 has 8 divisors (see below), whose sum is σ = 1503960551712. Its totient is φ = 1002355632208.

The previous prime is 1253122499999. The next prime is 1253122500017. The reversal of 1253122500005 is 5000052213521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253122500005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17757239 + ... + 17827668.

It is an arithmetic number, because the mean of its divisors is an integer number (187995068964).

Almost surely, 2^{1253122500005} is an apocalyptic number.

It is an amenable number.

1253122500005 is a deficient number, since it is larger than the sum of its proper divisors (250838051707).

1253122500005 is an equidigital number, since it uses as much as digits as its factorization.

1253122500005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35591955.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 1253122500005 its reverse (5000052213521), we get a palindrome (6253174713526).

The spelling of 1253122500005 in words is "one trillion, two hundred fifty-three billion, one hundred twenty-two million, five hundred thousand, five".