6025506661 has 4 divisors (see below), whose sum is σ = 6110373024. Its totient is φ = 5940640300.

The previous prime is 6025506653. The next prime is 6025506671. The reversal of 6025506661 is 1666055206.

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 6025506661 - 2³ = 6025506653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6025506661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6025506671) 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, 42433075 + ... + 42433216.

It is an arithmetic number, because the mean of its divisors is an integer number (1527593256).

Almost surely, 2^6025506661 is an apocalyptic number.

It is an amenable number.

6025506661 is a deficient number, since it is larger than the sum of its proper divisors (84866363).

6025506661 is an equidigital number, since it uses as much as digits as its factorization.

6025506661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84866362.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 6025506661 is about 77624.1371030944. The cubic root of 6025506661 is about 1819.6918792684.

The spelling of 6025506661 in words is "six billion, twenty-five million, five hundred six thousand, six hundred sixty-one".