1017425855 has 4 divisors (see below), whose sum is σ = 1220911032. Its totient is φ = 813940680.

The previous prime is 1017425837. The next prime is 1017425909. The reversal of 1017425855 is 5585247101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1017425855 - 2¹⁰ = 1017424831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101742581 + ... + 101742590.

It is an arithmetic number, because the mean of its divisors is an integer number (305227758).

Almost surely, 2^1017425855 is an apocalyptic number.

1017425855 is a deficient number, since it is larger than the sum of its proper divisors (203485177).

1017425855 is an equidigital number, since it uses as much as digits as its factorization.

1017425855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203485176.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 1017425855 is about 31897.1135841474. The cubic root of 1017425855 is about 1005.7752011780.

The spelling of 1017425855 in words is "one billion, seventeen million, four hundred twenty-five thousand, eight hundred fifty-five".