1005455025 has 84 divisors (see below), whose sum is σ = 1914253968. Its totient is φ = 523363680.

The previous prime is 1005454981. The next prime is 1005455107. The reversal of 1005455025 is 5205545001.

1005455025 is a `hidden beast` number, since 100 + 5 + 4 + 550 + 2 + 5 = 666.

It is not a de Polignac number, because 1005455025 - 2⁷ = 1005454897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005455025.

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 83 ways as a sum of consecutive naturals, for example, 783034 + ... + 784316.

Almost surely, 2^1005455025 is an apocalyptic number.

1005455025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005455025 is a deficient number, since it is larger than the sum of its proper divisors (908798943).

1005455025 is an equidigital number, since it uses as much as digits as its factorization.

1005455025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 1005455025 is about 31708.9108138391. The cubic root of 1005455025 is about 1001.8150452841.

It can be divided in two parts, 100545 and 5025, that added together give a triangular number (105570 = T₄₅₉).

The spelling of 1005455025 in words is "one billion, five million, four hundred fifty-five thousand, twenty-five".