13558222952 has 8 divisors (see below), whose sum is σ = 25421668050. Its totient is φ = 6779111472.

The previous prime is 13558222949. The next prime is 13558222957. The reversal of 13558222952 is 25922285531.

It can be written as a sum of positive squares in only one way, i.e., 9060374596 + 4497848356 = 95186^2 + 67066^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13558222952² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13558222957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847388927 + ... + 847388942.

Almost surely, 2^13558222952 is an apocalyptic number.

It is an amenable number.

13558222952 is a deficient number, since it is larger than the sum of its proper divisors (11863445098).

13558222952 is a wasteful number, since it uses less digits than its factorization.

13558222952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694777875 (or 1694777871 counting only the distinct ones).

The product of its digits is 432000, while the sum is 44.

The spelling of 13558222952 in words is "thirteen billion, five hundred fifty-eight million, two hundred twenty-two thousand, nine hundred fifty-two".