22525643654 has 32 divisors (see below), whose sum is σ = 36639488160. Its totient is φ = 10344886272.

The previous prime is 22525643639. The next prime is 22525643659. The reversal of 22525643654 is 45634652522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525643659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1878542 + ... + 1890494.

It is an arithmetic number, because the mean of its divisors is an integer number (1144984005).

Almost surely, 2^22525643654 is an apocalyptic number.

22525643654 is a deficient number, since it is larger than the sum of its proper divisors (14113844506).

22525643654 is a wasteful number, since it uses less digits than its factorization.

22525643654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13304.

The product of its digits is 1728000, while the sum is 44.

The spelling of 22525643654 in words is "twenty-two billion, five hundred twenty-five million, six hundred forty-three thousand, six hundred fifty-four".