2522010661 has 4 divisors (see below), whose sum is σ = 2527756000. Its totient is φ = 2516265324.

The previous prime is 2522010653. The next prime is 2522010691. The reversal of 2522010661 is 1660102252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2522010661 - 2³ = 2522010653 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 (2522010641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872011 + ... + 2872888.

It is an arithmetic number, because the mean of its divisors is an integer number (631939000).

Almost surely, 2^2522010661 is an apocalyptic number.

It is an amenable number.

2522010661 is a deficient number, since it is larger than the sum of its proper divisors (5745339).

2522010661 is an equidigital number, since it uses as much as digits as its factorization.

2522010661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745338.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2522010661 is about 50219.6242618361. The cubic root of 2522010661 is about 1361.1802508557.

The spelling of 2522010661 in words is "two billion, five hundred twenty-two million, ten thousand, six hundred sixty-one".