1455223315525 has 24 divisors (see below), whose sum is σ = 2062549488384. Its totient is φ = 997727016000.

The previous prime is 1455223315501. The next prime is 1455223315529. The reversal of 1455223315525 is 5255133225541.

It is not a de Polignac number, because 1455223315525 - 2¹³ = 1455223307333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455223315529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 669999 + ... + 1832851.

It is an arithmetic number, because the mean of its divisors is an integer number (85939562016).

Almost surely, 2^{1455223315525} is an apocalyptic number.

It is an amenable number.

1455223315525 is a deficient number, since it is larger than the sum of its proper divisors (607326172859).

1455223315525 is a wasteful number, since it uses less digits than its factorization.

1455223315525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170021 (or 1170016 counting only the distinct ones).

The product of its digits is 900000, while the sum is 43.

The spelling of 1455223315525 in words is "one trillion, four hundred fifty-five billion, two hundred twenty-three million, three hundred fifteen thousand, five hundred twenty-five".