25226006566 has 8 divisors (see below), whose sum is σ = 37839710664. Its totient is φ = 12612769680.

The previous prime is 25226006549. The next prime is 25226006567. The reversal of 25226006566 is 66560062252.

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

It is a super-2 number, since 2×25226006566² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25226006567) 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, 94981 + ... + 243871.

It is an arithmetic number, because the mean of its divisors is an integer number (4729963833).

Almost surely, 2^25226006566 is an apocalyptic number.

25226006566 is a deficient number, since it is larger than the sum of its proper divisors (12613704098).

25226006566 is a wasteful number, since it uses less digits than its factorization.

25226006566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233606.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 25226006566 in words is "twenty-five billion, two hundred twenty-six million, six thousand, five hundred sixty-six".