2525884821 has 6 divisors (see below), whose sum is σ = 3648500310. Its totient is φ = 1683923208.

The previous prime is 2525884811. The next prime is 2525884843. The reversal of 2525884821 is 1284885252.

2525884821 is a `hidden beast` number, since 2 + 5 + 2 + 588 + 48 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1363824900 + 1162059921 = 36930^2 + 34089^2 .

It is not a de Polignac number, because 2525884821 - 2¹⁰ = 2525883797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525884811) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 140326926 + ... + 140326943.

It is an arithmetic number, because the mean of its divisors is an integer number (608083385).

Almost surely, 2^2525884821 is an apocalyptic number.

It is an amenable number.

2525884821 is a deficient number, since it is larger than the sum of its proper divisors (1122615489).

2525884821 is a wasteful number, since it uses less digits than its factorization.

2525884821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280653875 (or 280653872 counting only the distinct ones).

The product of its digits is 409600, while the sum is 45.

The square root of 2525884821 is about 50258.1816324467. The cubic root of 2525884821 is about 1361.8768818181.

The spelling of 2525884821 in words is "two billion, five hundred twenty-five million, eight hundred eighty-four thousand, eight hundred twenty-one".