2495643125 has 10 divisors (see below), whose sum is σ = 3118556430. Its totient is φ = 1996514000.

The previous prime is 2495643121. The next prime is 2495643131. The reversal of 2495643125 is 5213465942.

It can be written as a sum of positive squares in 5 ways, for example, as 800097796 + 1695545329 = 28286^2 + 41177^2 .

It is not a de Polignac number, because 2495643125 - 2² = 2495643121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495643121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1995890 + ... + 1997139.

It is an arithmetic number, because the mean of its divisors is an integer number (311855643).

Almost surely, 2^2495643125 is an apocalyptic number.

2495643125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2495643125 is a deficient number, since it is larger than the sum of its proper divisors (622913305).

2495643125 is an frugal number, since it uses more digits than its factorization.

2495643125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993049 (or 3993034 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 2495643125 is about 49956.4122510814. The cubic root of 2495643125 is about 1356.4199246273.

The spelling of 2495643125 in words is "two billion, four hundred ninety-five million, six hundred forty-three thousand, one hundred twenty-five".