1554505548 has 12 divisors (see below), whose sum is σ = 3627179640. Its totient is φ = 518168512.

The previous prime is 1554505489. The next prime is 1554505549. The reversal of 1554505548 is 8455054551.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1554505549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64771053 + ... + 64771076.

It is an arithmetic number, because the mean of its divisors is an integer number (302264970).

Almost surely, 2^1554505548 is an apocalyptic number.

It is an amenable number.

1554505548 is an abundant number, since it is smaller than the sum of its proper divisors (2072674092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1554505548 is a wasteful number, since it uses less digits than its factorization.

1554505548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129542136 (or 129542134 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 42.

The square root of 1554505548 is about 39427.2183649823. The cubic root of 1554505548 is about 1158.4147857404.

The spelling of 1554505548 in words is "one billion, five hundred fifty-four million, five hundred five thousand, five hundred forty-eight".