2525321440 has 48 divisors (see below), whose sum is σ = 6317024112. Its totient is φ = 950708224.

The previous prime is 2525321437. The next prime is 2525321441. The reversal of 2525321440 is 441235252.

It is a junction number, because it is equal to n+sod(n) for n = 2525321399 and 2525321408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525321441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461494 + ... + 466933.

It is an arithmetic number, because the mean of its divisors is an integer number (131604669).

Almost surely, 2^2525321440 is an apocalyptic number.

2525321440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2525321440 is an abundant number, since it is smaller than the sum of its proper divisors (3791702672).

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

2525321440 is a wasteful number, since it uses less digits than its factorization.

2525321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928459 (or 928451 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2525321440 is about 50252.5764513622. The cubic root of 2525321440 is about 1361.7756219079.

Adding to 2525321440 its reverse (441235252), we get a palindrome (2966556692).

The spelling of 2525321440 in words is "two billion, five hundred twenty-five million, three hundred twenty-one thousand, four hundred forty".