2500064123 has 4 divisors (see below), whose sum is σ = 2500505640. Its totient is φ = 2499622608.

The previous prime is 2500064117. The next prime is 2500064191. The reversal of 2500064123 is 3214600052.

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

It is a cyclic number.

It is not a de Polignac number, because 2500064123 - 2¹⁰ = 2500063099 is a prime.

It is a super-2 number, since 2×2500064123² = 12500641238223518258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500064423) 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, 212153 + ... + 223626.

It is an arithmetic number, because the mean of its divisors is an integer number (625126410).

Almost surely, 2^2500064123 is an apocalyptic number.

2500064123 is a deficient number, since it is larger than the sum of its proper divisors (441517).

2500064123 is an equidigital number, since it uses as much as digits as its factorization.

2500064123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441516.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2500064123 is about 50000.6412258883. The cubic root of 2500064123 is about 1357.2204119716.

Adding to 2500064123 its reverse (3214600052), we get a palindrome (5714664175).

The spelling of 2500064123 in words is "two billion, five hundred million, sixty-four thousand, one hundred twenty-three".