1000255552 has 56 divisors (see below), whose sum is σ = 2030452632. Its totient is φ = 488755200.

The previous prime is 1000255523. The next prime is 1000255567. The reversal of 1000255552 is 2555520001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84345856 + 915909696 = 9184^2 + 30264^2 .

It is a super-2 number, since 2×1000255552² = 2001022338613649408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674652 + ... + 676132.

Almost surely, 2^1000255552 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 1000255552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015226316).

1000255552 is an abundant number, since it is smaller than the sum of its proper divisors (1030197080).

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

1000255552 is a wasteful number, since it uses less digits than its factorization.

1000255552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 1000255552 is about 31626.8169754719. The cubic root of 1000255552 is about 1000.0851767447.

Adding to 1000255552 its reverse (2555520001), we get a palindrome (3555775553).

The spelling of 1000255552 in words is "one billion, two hundred fifty-five thousand, five hundred fifty-two".