2521553841 has 16 divisors (see below), whose sum is σ = 3822512320. Its totient is φ = 1641941280.

The previous prime is 2521553831. The next prime is 2521553869. The reversal of 2521553841 is 1483551252.

2521553841 is a `hidden beast` number, since 2 + 5 + 21 + 553 + 84 + 1 = 666.

It is not a de Polignac number, because 2521553841 - 2⁹ = 2521553329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2521553796 and 2521553805.

It is not an unprimeable number, because it can be changed into a prime (2521553831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1084780 + ... + 1087101.

It is an arithmetic number, because the mean of its divisors is an integer number (238907020).

Almost surely, 2^2521553841 is an apocalyptic number.

It is an amenable number.

2521553841 is a deficient number, since it is larger than the sum of its proper divisors (1300958479).

2521553841 is a wasteful number, since it uses less digits than its factorization.

2521553841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171933 (or 2171927 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 2521553841 is about 50215.0758338569. The cubic root of 2521553841 is about 1361.0980608899.

The spelling of 2521553841 in words is "two billion, five hundred twenty-one million, five hundred fifty-three thousand, eight hundred forty-one".