9974615553 has 96 divisors (see below), whose sum is σ = 17194125312. Its totient is φ = 5455296000.

The previous prime is 9974615491. The next prime is 9974615591. The reversal of 9974615553 is 3555164799.

9974615553 is a `hidden beast` number, since 9 + 9 + 74 + 6 + 15 + 553 = 666.

It is not a de Polignac number, because 9974615553 - 2⁶ = 9974615489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9974615553.

It is not an unprimeable number, because it can be changed into a prime (9974615593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24874153 + ... + 24874553.

It is an arithmetic number, because the mean of its divisors is an integer number (179105472).

Almost surely, 2^9974615553 is an apocalyptic number.

It is an amenable number.

9974615553 is a deficient number, since it is larger than the sum of its proper divisors (7219509759).

9974615553 is a wasteful number, since it uses less digits than its factorization.

9974615553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 632 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 54.

The square root of 9974615553 is about 99872.9971163377. The cubic root of 9974615553 is about 2152.6101742423.

The spelling of 9974615553 in words is "nine billion, nine hundred seventy-four million, six hundred fifteen thousand, five hundred fifty-three".