99717255452 has 6 divisors (see below), whose sum is σ = 174505197048. Its totient is φ = 49858627724.

The previous prime is 99717255433. The next prime is 99717255461. The reversal of 99717255452 is 25455271799.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12464656928 + ... + 12464656935.

It is an arithmetic number, because the mean of its divisors is an integer number (29084199508).

Almost surely, 2^99717255452 is an apocalyptic number.

It is an amenable number.

99717255452 is a deficient number, since it is larger than the sum of its proper divisors (74787941596).

99717255452 is a wasteful number, since it uses less digits than its factorization.

99717255452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24929313867 (or 24929313865 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 56.

The spelling of 99717255452 in words is "ninety-nine billion, seven hundred seventeen million, two hundred fifty-five thousand, four hundred fifty-two".