1550525542513 has 4 divisors (see below), whose sum is σ = 1550745700848. Its totient is φ = 1550305384180.

The previous prime is 1550525542487. The next prime is 1550525542549. The reversal of 1550525542513 is 3152455250551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1550525542513 - 2¹³ = 1550525534321 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 1550525542513.

It is not an unprimeable number, because it can be changed into a prime (1550525542583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110068603 + ... + 110082688.

It is an arithmetic number, because the mean of its divisors is an integer number (387686425212).

Almost surely, 2^{1550525542513} is an apocalyptic number.

It is an amenable number.

1550525542513 is a deficient number, since it is larger than the sum of its proper divisors (220158335).

1550525542513 is an equidigital number, since it uses as much as digits as its factorization.

1550525542513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220158334.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 1550525542513 in words is "one trillion, five hundred fifty billion, five hundred twenty-five million, five hundred forty-two thousand, five hundred thirteen".