99271556 has 6 divisors (see below), whose sum is σ = 173725230. Its totient is φ = 49635776.

The previous prime is 99271547. The next prime is 99271603. The reversal of 99271556 is 65517299.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56761156 + 42510400 = 7534^2 + 6520^2 .

It is a super-2 number, since 2×99271556² = 19709683661322272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12408941 + ... + 12408948.

It is an arithmetic number, because the mean of its divisors is an integer number (28954205).

Almost surely, 2^99271556 is an apocalyptic number.

It is an amenable number.

99271556 is a deficient number, since it is larger than the sum of its proper divisors (74453674).

99271556 is a wasteful number, since it uses less digits than its factorization.

99271556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24817893 (or 24817891 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 99271556 is about 9963.5112284776. The cubic root of 99271556 is about 463.0290897542.

The spelling of 99271556 in words is "ninety-nine million, two hundred seventy-one thousand, five hundred fifty-six".