22525346642 has 4 divisors (see below), whose sum is σ = 33788019966. Its totient is φ = 11262673320.

The previous prime is 22525346603. The next prime is 22525346651. The reversal of 22525346642 is 24664352522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22064428681 + 460917961 = 148541^2 + 21469^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22525346642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5631336659 + ... + 5631336662.

Almost surely, 2^22525346642 is an apocalyptic number.

22525346642 is a deficient number, since it is larger than the sum of its proper divisors (11262673324).

22525346642 is a wasteful number, since it uses less digits than its factorization.

22525346642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11262673323.

The product of its digits is 691200, while the sum is 41.

The spelling of 22525346642 in words is "twenty-two billion, five hundred twenty-five million, three hundred forty-six thousand, six hundred forty-two".