553274981 has 8 divisors (see below), whose sum is σ = 633672000. Its totient is φ = 473217408.

The previous prime is 553274977. The next prime is 553274983. The reversal of 553274981 is 189472355.

553274981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553274981 - 2² = 553274977 is a prime.

It is a super-2 number, since 2×553274981² = 612226409201100722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553274983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81356 + ... + 87893.

It is an arithmetic number, because the mean of its divisors is an integer number (79209000).

Almost surely, 2^553274981 is an apocalyptic number.

It is an amenable number.

553274981 is a deficient number, since it is larger than the sum of its proper divisors (80397019).

553274981 is a wasteful number, since it uses less digits than its factorization.

553274981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169723.

The product of its digits is 302400, while the sum is 44.

The square root of 553274981 is about 23521.7979967519. The cubic root of 553274981 is about 820.9442726042.

The spelling of 553274981 in words is "five hundred fifty-three million, two hundred seventy-four thousand, nine hundred eighty-one".