1550455041503 has 4 divisors (see below), whose sum is σ = 1617866130288. Its totient is φ = 1483043952720.

The previous prime is 1550455041481. The next prime is 1550455041547. The reversal of 1550455041503 is 3051405540551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1550455041503 - 2¹⁸ = 1550454779359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550455040503) 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, 33705544358 + ... + 33705544403.

It is an arithmetic number, because the mean of its divisors is an integer number (404466532572).

Almost surely, 2^{1550455041503} is an apocalyptic number.

1550455041503 is a deficient number, since it is larger than the sum of its proper divisors (67411088785).

1550455041503 is an equidigital number, since it uses as much as digits as its factorization.

1550455041503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67411088784.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 1550455041503 in words is "one trillion, five hundred fifty billion, four hundred fifty-five million, forty-one thousand, five hundred three".