8223207578552 has 32 divisors (see below), whose sum is σ = 16393226303520. Its totient is φ = 3853687695360.

The previous prime is 8223207578539. The next prime is 8223207578563. The reversal of 8223207578552 is 2558757023228.

It is a happy number.

It is a super-2 number, since 2×8223207578552² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125412788 + ... + 125478339.

It is an arithmetic number, because the mean of its divisors is an integer number (512288321985).

Almost surely, 2^{8223207578552} is an apocalyptic number.

It is an amenable number.

8223207578552 is a deficient number, since it is larger than the sum of its proper divisors (8170018724968).

8223207578552 is a wasteful number, since it uses less digits than its factorization.

8223207578552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250891391 (or 250891387 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 56.

The spelling of 8223207578552 in words is "eight trillion, two hundred twenty-three billion, two hundred seven million, five hundred seventy-eight thousand, five hundred fifty-two".