1011325555 has 32 divisors (see below), whose sum is σ = 1323786240. Its totient is φ = 739724160.

The previous prime is 1011325547. The next prime is 1011325573. The reversal of 1011325555 is 5555231101.

It is not a de Polignac number, because 1011325555 - 2³ = 1011325547 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208872 + ... + 213658.

It is an arithmetic number, because the mean of its divisors is an integer number (41368320).

Almost surely, 2^1011325555 is an apocalyptic number.

1011325555 is a deficient number, since it is larger than the sum of its proper divisors (312460685).

1011325555 is a wasteful number, since it uses less digits than its factorization.

1011325555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1011325555 is about 31801.3451759513. The cubic root of 1011325555 is about 1003.7610219801.

Adding to 1011325555 its reverse (5555231101), we get a palindrome (6566556656).

The spelling of 1011325555 in words is "one billion, eleven million, three hundred twenty-five thousand, five hundred fifty-five".