1625065163 has 4 divisors (see below), whose sum is σ = 1625217000. Its totient is φ = 1624913328.

The previous prime is 1625065133. The next prime is 1625065181. The reversal of 1625065163 is 3615605261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3615605261 = 4703 ⋅768787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1625065163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1625065133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58538 + ... + 81711.

It is an arithmetic number, because the mean of its divisors is an integer number (406304250).

Almost surely, 2^1625065163 is an apocalyptic number.

1625065163 is a deficient number, since it is larger than the sum of its proper divisors (151837).

1625065163 is a wasteful number, since it uses less digits than its factorization.

1625065163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151836.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1625065163 is about 40312.0969809312. The cubic root of 1625065163 is about 1175.6830585244.

The spelling of 1625065163 in words is "one billion, six hundred twenty-five million, sixty-five thousand, one hundred sixty-three".