1520454313553 has 8 divisors (see below), whose sum is σ = 1737716011200. Its totient is φ = 1303206100560.

The previous prime is 1520454313537. The next prime is 1520454313559. The reversal of 1520454313553 is 3553134540251.

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

It is not a de Polignac number, because 1520454313553 - 2⁴ = 1520454313537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520454313553.

It is not an unprimeable number, because it can be changed into a prime (1520454313559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3128378 + ... + 3581571.

It is an arithmetic number, because the mean of its divisors is an integer number (217214501400).

Almost surely, 2^{1520454313553} is an apocalyptic number.

It is an amenable number.

1520454313553 is a deficient number, since it is larger than the sum of its proper divisors (217261697647).

1520454313553 is an equidigital number, since it uses as much as digits as its factorization.

1520454313553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742327.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 1520454313553 in words is "one trillion, five hundred twenty billion, four hundred fifty-four million, three hundred thirteen thousand, five hundred fifty-three".