2525420044521 has 40 divisors (see below), whose sum is σ = 4124665908000. Its totient is φ = 1527148546560.

The previous prime is 2525420044507. The next prime is 2525420044529. The reversal of 2525420044521 is 1254400245252.

2525420044521 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 4 + 200 + 445 + 2 + 1 = 666.

It is not a de Polignac number, because 2525420044521 - 2⁶ = 2525420044457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2525420044529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2756251 + ... + 3556368.

It is an arithmetic number, because the mean of its divisors is an integer number (103116647700).

Almost surely, 2^{2525420044521} is an apocalyptic number.

It is an amenable number.

2525420044521 is a deficient number, since it is larger than the sum of its proper divisors (1599245863479).

2525420044521 is a wasteful number, since it uses less digits than its factorization.

2525420044521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313091 (or 6313082 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 2525420044521 its reverse (1254400245252), we get a palindrome (3779820289773).

The spelling of 2525420044521 in words is "two trillion, five hundred twenty-five billion, four hundred twenty million, forty-four thousand, five hundred twenty-one".