2521061653 has 16 divisors (see below), whose sum is σ = 2808038016. Its totient is φ = 2243899840.

The previous prime is 2521061629. The next prime is 2521061657. The reversal of 2521061653 is 3561601252.

It is a cyclic number.

It is not a de Polignac number, because 2521061653 - 2⁹ = 2521061141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521061657) 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 15 ways as a sum of consecutive naturals, for example, 288951 + ... + 297547.

It is an arithmetic number, because the mean of its divisors is an integer number (175502376).

Almost surely, 2^2521061653 is an apocalyptic number.

It is an amenable number.

2521061653 is a deficient number, since it is larger than the sum of its proper divisors (286976363).

2521061653 is a wasteful number, since it uses less digits than its factorization.

2521061653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9164.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2521061653 is about 50210.1747955531. The cubic root of 2521061653 is about 1361.0094964879.

The spelling of 2521061653 in words is "two billion, five hundred twenty-one million, sixty-one thousand, six hundred fifty-three".