1555381248 has 176 divisors, whose sum is σ = 4345469856. Its totient is φ = 494141440.

The previous prime is 1555381241. The next prime is 1555381271. The reversal of 1555381248 is 8421835551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555381241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6675340 + ... + 6675572.

Almost surely, 2^1555381248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1555381248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2172734928).

1555381248 is an abundant number, since it is smaller than the sum of its proper divisors (2790088608).

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

1555381248 is a wasteful number, since it uses less digits than its factorization.

1555381248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 332 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 1555381248 is about 39438.3220738408. The cubic root of 1555381248 is about 1158.6322682712.

The spelling of 1555381248 in words is "one billion, five hundred fifty-five million, three hundred eighty-one thousand, two hundred forty-eight".