1253251512655 has 8 divisors (see below), whose sum is σ = 1592366627952. Its totient is φ = 943624668288.

The previous prime is 1253251512649. The next prime is 1253251512671. The reversal of 1253251512655 is 5562151523521.

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 1253251512655 - 2¹¹ = 1253251510607 is a prime.

It is a Duffinian 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, 7372067637 + ... + 7372067806.

It is an arithmetic number, because the mean of its divisors is an integer number (199045828494).

Almost surely, 2^{1253251512655} is an apocalyptic number.

1253251512655 is a deficient number, since it is larger than the sum of its proper divisors (339115115297).

1253251512655 is a wasteful number, since it uses less digits than its factorization.

1253251512655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14744135465.

The product of its digits is 450000, while the sum is 43.

The spelling of 1253251512655 in words is "one trillion, two hundred fifty-three billion, two hundred fifty-one million, five hundred twelve thousand, six hundred fifty-five".