2251231503555 has 64 divisors (see below), whose sum is σ = 3669274183680. Its totient is φ = 1178440682496.

The previous prime is 2251231503407. The next prime is 2251231503613. The reversal of 2251231503555 is 5553051321522.

It is not a de Polignac number, because 2251231503555 - 2²⁹ = 2250694632643 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 172329954 + ... + 172343016.

It is an arithmetic number, because the mean of its divisors is an integer number (57332409120).

Almost surely, 2^{2251231503555} is an apocalyptic number.

2251231503555 is a deficient number, since it is larger than the sum of its proper divisors (1418042680125).

2251231503555 is a wasteful number, since it uses less digits than its factorization.

2251231503555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14100.

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 2251231503555 in words is "two trillion, two hundred fifty-one billion, two hundred thirty-one million, five hundred three thousand, five hundred fifty-five".