2521843061 has 2 divisors, whose sum is σ = 2521843062. Its totient is φ = 2521843060.

The previous prime is 2521843057. The next prime is 2521843063. The reversal of 2521843061 is 1603481252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1771904836 + 749938225 = 42094^2 + 27385^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521843061 - 2² = 2521843057 is a prime.

Together with 2521843063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521843063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260921530 + 1260921531.

It is an arithmetic number, because the mean of its divisors is an integer number (1260921531).

Almost surely, 2^2521843061 is an apocalyptic number.

It is an amenable number.

2521843061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521843061 is an equidigital number, since it uses as much as digits as its factorization.

2521843061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2521843061 is about 50217.9555637224. The cubic root of 2521843061 is about 1361.1500978159.

The spelling of 2521843061 in words is "two billion, five hundred twenty-one million, eight hundred forty-three thousand, sixty-one".