2400115525 has 12 divisors (see below), whose sum is σ = 2988923652. Its totient is φ = 1911847040.

The previous prime is 2400115517. The next prime is 2400115637. The reversal of 2400115525 is 5255110042.

It can be written as a sum of positive squares in 6 ways, for example, as 3621409 + 2396494116 = 1903^2 + 48954^2 .

It is not a de Polignac number, because 2400115525 - 2³ = 2400115517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2400115525.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 200194 + ... + 211843.

It is an arithmetic number, because the mean of its divisors is an integer number (249076971).

Almost surely, 2^2400115525 is an apocalyptic number.

2400115525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2400115525 is a deficient number, since it is larger than the sum of its proper divisors (588808127).

2400115525 is a wasteful number, since it uses less digits than its factorization.

2400115525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412280 (or 412275 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2400115525 is about 48990.9739135690. The cubic root of 2400115525 is about 1338.8873821090.

Adding to 2400115525 its reverse (5255110042), we get a palindrome (7655225567).

The spelling of 2400115525 in words is "two billion, four hundred million, one hundred fifteen thousand, five hundred twenty-five".