25266002606 has 24 divisors (see below), whose sum is σ = 42039530064. Its totient is φ = 11376805440.

The previous prime is 25266002603. The next prime is 25266002611. The reversal of 25266002606 is 60620066252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25266002603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897746 + ... + 925461.

It is an arithmetic number, because the mean of its divisors is an integer number (1751647086).

Almost surely, 2^25266002606 is an apocalyptic number.

25266002606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25266002606 is a deficient number, since it is larger than the sum of its proper divisors (16773527458).

25266002606 is a wasteful number, since it uses less digits than its factorization.

25266002606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823276 (or 1823263 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 25266002606 its reverse (60620066252), we get a palindrome (85886068858).

The spelling of 25266002606 in words is "twenty-five billion, two hundred sixty-six million, two thousand, six hundred six".