2500163885 has 8 divisors (see below), whose sum is σ = 3000699000. Its totient is φ = 1999796224.

The previous prime is 2500163879. The next prime is 2500163891. The reversal of 2500163885 is 5883610052.

It is an interprime number because it is at equal distance from previous prime (2500163879) and next prime (2500163891).

It can be written as a sum of positive squares in 4 ways, for example, as 123698884 + 2376465001 = 11122^2 + 48749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2500163885 - 2⁶ = 2500163821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6260 + ... + 70989.

It is an arithmetic number, because the mean of its divisors is an integer number (375087375).

Almost surely, 2^2500163885 is an apocalyptic number.

It is an amenable number.

2500163885 is a deficient number, since it is larger than the sum of its proper divisors (500535115).

2500163885 is an equidigital number, since it uses as much as digits as its factorization.

2500163885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83727.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2500163885 is about 50001.6388231426. The cubic root of 2500163885 is about 1357.2384644715.

The spelling of 2500163885 in words is "two billion, five hundred million, one hundred sixty-three thousand, eight hundred eighty-five".