625552566777422 has 4 divisors (see below), whose sum is σ = 938328850166136. Its totient is φ = 312776283388710.

The previous prime is 625552566777301. The next prime is 625552566777443. The reversal of 625552566777422 is 224777665255526.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156388141694354 + ... + 156388141694357.

It is an arithmetic number, because the mean of its divisors is an integer number (234582212541534).

Almost surely, 2^{625552566777422} is an apocalyptic number.

625552566777422 is a deficient number, since it is larger than the sum of its proper divisors (312776283388714).

625552566777422 is a wasteful number, since it uses less digits than its factorization.

625552566777422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312776283388713.

The product of its digits is 2963520000, while the sum is 71.

The spelling of 625552566777422 in words is "six hundred twenty-five trillion, five hundred fifty-two billion, five hundred sixty-six million, seven hundred seventy-seven thousand, four hundred twenty-two".