2500390161 has 8 divisors (see below), whose sum is σ = 3704281760. Its totient is φ = 1666926756.

The previous prime is 2500390159. The next prime is 2500390163. The reversal of 2500390161 is 1610930052.

It is an interprime number because it is at equal distance from previous prime (2500390159) and next prime (2500390163).

It is not a de Polignac number, because 2500390161 - 2¹ = 2500390159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 92607043 = 2500390161 / (2 + 5 + 0 + 0 + 3 + 9 + 0 + 1 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500390163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46303495 + ... + 46303548.

It is an arithmetic number, because the mean of its divisors is an integer number (463035220).

Almost surely, 2^2500390161 is an apocalyptic number.

It is an amenable number.

2500390161 is a deficient number, since it is larger than the sum of its proper divisors (1203891599).

2500390161 is an equidigital number, since it uses as much as digits as its factorization.

2500390161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92607052 (or 92607046 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2500390161 is about 50003.9014577863. The cubic root of 2500390161 is about 1357.2794086176.

The spelling of 2500390161 in words is "two billion, five hundred million, three hundred ninety thousand, one hundred sixty-one".