1553938548 has 12 divisors (see below), whose sum is σ = 3625856640. Its totient is φ = 517979512.

The previous prime is 1553938537. The next prime is 1553938549. The reversal of 1553938548 is 8458393551.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1553938548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553938549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64747428 + ... + 64747451.

It is an arithmetic number, because the mean of its divisors is an integer number (302154720).

Almost surely, 2^1553938548 is an apocalyptic number.

It is an amenable number.

1553938548 is an abundant number, since it is smaller than the sum of its proper divisors (2071918092).

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

1553938548 is a wasteful number, since it uses less digits than its factorization.

1553938548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129494886 (or 129494884 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 51.

The square root of 1553938548 is about 39420.0272450439. The cubic root of 1553938548 is about 1158.2739261472.

The spelling of 1553938548 in words is "one billion, five hundred fifty-three million, nine hundred thirty-eight thousand, five hundred forty-eight".