2525002666 has 8 divisors (see below), whose sum is σ = 3789093924. Its totient is φ = 1261971360.

The previous prime is 2525002657. The next prime is 2525002691. The reversal of 2525002666 is 6662005252.

It can be written as a sum of positive squares in 2 ways, for example, as 2132130625 + 392872041 = 46175^2 + 19821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259005 + ... + 268576.

Almost surely, 2^2525002666 is an apocalyptic number.

2525002666 is a deficient number, since it is larger than the sum of its proper divisors (1264091258).

2525002666 is a wasteful number, since it uses less digits than its factorization.

2525002666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529976.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2525002666 is about 50249.4046332889. The cubic root of 2525002666 is about 1361.7183200370.

The spelling of 2525002666 in words is "two billion, five hundred twenty-five million, two thousand, six hundred sixty-six".