1554541041503 has 2 divisors, whose sum is σ = 1554541041504. Its totient is φ = 1554541041502.

The previous prime is 1554541041481. The next prime is 1554541041517. The reversal of 1554541041503 is 3051401454551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1554541041503 - 2⁸ = 1554541041247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1554541041533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777270520751 + 777270520752.

It is an arithmetic number, because the mean of its divisors is an integer number (777270520752).

Almost surely, 2^{1554541041503} is an apocalyptic number.

1554541041503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1554541041503 is an equidigital number, since it uses as much as digits as its factorization.

1554541041503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 1554541041503 in words is "one trillion, five hundred fifty-four billion, five hundred forty-one million, forty-one thousand, five hundred three".