2505241240 has 16 divisors (see below), whose sum is σ = 5636792880. Its totient is φ = 1002096480.

The previous prime is 2505241231. The next prime is 2505241247. The reversal of 2505241240 is 421425052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505241247) 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, 31315476 + ... + 31315555.

It is an arithmetic number, because the mean of its divisors is an integer number (352299555).

Almost surely, 2^2505241240 is an apocalyptic number.

2505241240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505241240 is an abundant number, since it is smaller than the sum of its proper divisors (3131551640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505241240 is a wasteful number, since it uses less digits than its factorization.

2505241240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62631042 (or 62631038 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2505241240 is about 50052.3849581616. The cubic root of 2505241240 is about 1358.1566071994.

Adding to 2505241240 its reverse (421425052), we get a palindrome (2926666292).

The spelling of 2505241240 in words is "two billion, five hundred five million, two hundred forty-one thousand, two hundred forty".