1165803425 has 24 divisors (see below), whose sum is σ = 1532714400. Its totient is φ = 877150080.

The previous prime is 1165803421. The next prime is 1165803427. The reversal of 1165803425 is 5243085611.

It is not a de Polignac number, because 1165803425 - 2² = 1165803421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165803421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57197 + ... + 74853.

It is an arithmetic number, because the mean of its divisors is an integer number (63863100).

Almost surely, 2^1165803425 is an apocalyptic number.

It is an amenable number.

1165803425 is a deficient number, since it is larger than the sum of its proper divisors (366910975).

1165803425 is a wasteful number, since it uses less digits than its factorization.

1165803425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17825 (or 17820 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 1165803425 is about 34143.8636507353. The cubic root of 1165803425 is about 1052.4668905543.

The spelling of 1165803425 in words is "one billion, one hundred sixty-five million, eight hundred three thousand, four hundred twenty-five".