1554402004541 has 4 divisors (see below), whose sum is σ = 1568662573500. Its totient is φ = 1540141435584.

The previous prime is 1554402004537. The next prime is 1554402004549. The reversal of 1554402004541 is 1454002044551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1130117824900 + 424284179641 = 1063070^2 + 651371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1554402004541 - 2² = 1554402004537 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 (1554402004549) 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, 7130284316 + ... + 7130284533.

It is an arithmetic number, because the mean of its divisors is an integer number (392165643375).

Almost surely, 2^{1554402004541} is an apocalyptic number.

It is an amenable number.

1554402004541 is a deficient number, since it is larger than the sum of its proper divisors (14260568959).

1554402004541 is a wasteful number, since it uses less digits than its factorization.

1554402004541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14260568958.

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 1554402004541 in words is "one trillion, five hundred fifty-four billion, four hundred two million, four thousand, five hundred forty-one".