1125455552 has 56 divisors (see below), whose sum is σ = 2432304000. Its totient is φ = 513570816.

The previous prime is 1125455543. The next prime is 1125455563. The reversal of 1125455552 is 2555545211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66449 + ... + 81647.

It is an arithmetic number, because the mean of its divisors is an integer number (43434000).

Almost surely, 2^1125455552 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 1125455552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216152000).

1125455552 is an abundant number, since it is smaller than the sum of its proper divisors (1306848448).

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

1125455552 is a wasteful number, since it uses less digits than its factorization.

1125455552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15313 (or 15303 counting only the distinct ones).

The product of its digits is 50000, while the sum is 35.

The square root of 1125455552 is about 33547.8099434225. The cubic root of 1125455552 is about 1040.1822757439.

The spelling of 1125455552 in words is "one billion, one hundred twenty-five million, four hundred fifty-five thousand, five hundred fifty-two".