2501542205 has 4 divisors (see below), whose sum is σ = 3001850652. Its totient is φ = 2001233760.

The previous prime is 2501542201. The next prime is 2501542207. The reversal of 2501542205 is 5022451052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 265103524 + 2236438681 = 16282^2 + 47291^2 .

It is not a de Polignac number, because 2501542205 - 2² = 2501542201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501542201) 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, 250154216 + ... + 250154225.

It is an arithmetic number, because the mean of its divisors is an integer number (750462663).

Almost surely, 2^2501542205 is an apocalyptic number.

It is an amenable number.

2501542205 is a deficient number, since it is larger than the sum of its proper divisors (500308447).

2501542205 is an equidigital number, since it uses as much as digits as its factorization.

2501542205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500308446.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2501542205 is about 50015.4196723371. The cubic root of 2501542205 is about 1357.4878301588.

Adding to 2501542205 its reverse (5022451052), we get a palindrome (7523993257).

The spelling of 2501542205 in words is "two billion, five hundred one million, five hundred forty-two thousand, two hundred five".