2508739825 has 6 divisors (see below), whose sum is σ = 3110837414. Its totient is φ = 2006991840.

The previous prime is 2508739817. The next prime is 2508739829. The reversal of 2508739825 is 5289378052.

It can be written as a sum of positive squares in 3 ways, for example, as 128958736 + 2379781089 = 11356^2 + 48783^2 .

It is not a de Polignac number, because 2508739825 - 2³ = 2508739817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2508739829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50174772 + ... + 50174821.

Almost surely, 2^2508739825 is an apocalyptic number.

2508739825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2508739825 is a deficient number, since it is larger than the sum of its proper divisors (602097589).

2508739825 is a wasteful number, since it uses less digits than its factorization.

2508739825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100349603 (or 100349598 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 2508739825 is about 50087.3219986855. The cubic root of 2508739825 is about 1358.7885378468.

The spelling of 2508739825 in words is "two billion, five hundred eight million, seven hundred thirty-nine thousand, eight hundred twenty-five".