1045506555 has 32 divisors (see below), whose sum is σ = 1861139520. Its totient is φ = 556865280.

The previous prime is 1045506551. The next prime is 1045506571. The reversal of 1045506555 is 5556055401.

1045506555 is a `hidden beast` number, since 10 + 45 + 50 + 6 + 555 = 666.

It is not a de Polignac number, because 1045506555 - 2² = 1045506551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045506551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106119 + ... + 115551.

It is an arithmetic number, because the mean of its divisors is an integer number (58160610).

Almost surely, 2^1045506555 is an apocalyptic number.

1045506555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1045506555 is a deficient number, since it is larger than the sum of its proper divisors (815632965).

1045506555 is an equidigital number, since it uses as much as digits as its factorization.

1045506555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268 (or 10262 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 1045506555 is about 32334.2937915768. The cubic root of 1045506555 is about 1014.9444039209.

The spelling of 1045506555 in words is "one billion, forty-five million, five hundred six thousand, five hundred fifty-five".