1556887248 has 120 divisors (see below), whose sum is σ = 5031219648. Its totient is φ = 440211456.

The previous prime is 1556887229. The next prime is 1556887249. The reversal of 1556887248 is 8427886551.

1556887248 is a `hidden beast` number, since 1 + 5 + 568 + 8 + 72 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1556887194 and 1556887203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556887249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89815 + ... + 105737.

Almost surely, 2^1556887248 is an apocalyptic number.

1556887248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1556887248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2515609824).

1556887248 is an abundant number, since it is smaller than the sum of its proper divisors (3474332400).

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

1556887248 is a wasteful number, since it uses less digits than its factorization.

1556887248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16041 (or 16032 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The square root of 1556887248 is about 39457.4105587277. The cubic root of 1556887248 is about 1159.0060967315.

The spelling of 1556887248 in words is "one billion, five hundred fifty-six million, eight hundred eighty-seven thousand, two hundred forty-eight".