1081607552 has 64 divisors (see below), whose sum is σ = 2259124560. Its totient is φ = 515235840.

The previous prime is 1081607551. The next prime is 1081607561. The reversal of 1081607552 is 2557061801.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081607551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223268 + ... + 228060.

Almost surely, 2^1081607552 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 1081607552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129562280).

1081607552 is an abundant number, since it is smaller than the sum of its proper divisors (1177517008).

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

1081607552 is an equidigital number, since it uses as much as digits as its factorization.

1081607552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891 (or 4879 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 1081607552 is about 32887.8024805550. The cubic root of 1081607552 is about 1026.4943666177.

The spelling of 1081607552 in words is "one billion, eighty-one million, six hundred seven thousand, five hundred fifty-two".