1005425775 has 18 divisors (see below), whose sum is σ = 1800829680. Its totient is φ = 536226960.

The previous prime is 1005425711. The next prime is 1005425777. The reversal of 1005425775 is 5775245001.

1005425775 is a `hidden beast` number, since 100 + 542 + 5 + 7 + 7 + 5 = 666.

It is not a de Polignac number, because 1005425775 - 2⁶ = 1005425711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005425777) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2234055 + ... + 2234504.

Almost surely, 2^1005425775 is an apocalyptic number.

1005425775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1005425775 is a deficient number, since it is larger than the sum of its proper divisors (795403905).

1005425775 is a wasteful number, since it uses less digits than its factorization.

1005425775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468575 (or 4468567 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 1005425775 is about 31708.4495836678. The cubic root of 1005425775 is about 1001.8053304872.

The spelling of 1005425775 in words is "one billion, five million, four hundred twenty-five thousand, seven hundred seventy-five".