556104981 has 8 divisors (see below), whose sum is σ = 746022880. Its totient is φ = 368461872.

The previous prime is 556104959. The next prime is 556105027. The reversal of 556104981 is 189401655.

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

It is not a de Polignac number, because 556104981 - 2⁹ = 556104469 is a prime.

It is a super-2 number, since 2×556104981² = 618505499786020722, 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 (556104181) 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, 568126 + ... + 569103.

It is an arithmetic number, because the mean of its divisors is an integer number (93252860).

Almost surely, 2^556104981 is an apocalyptic number.

It is an amenable number.

556104981 is a deficient number, since it is larger than the sum of its proper divisors (189917899).

556104981 is a wasteful number, since it uses less digits than its factorization.

556104981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137395.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 556104981 is about 23581.8782330840. The cubic root of 556104981 is about 822.3416020890.

The spelling of 556104981 in words is "five hundred fifty-six million, one hundred four thousand, nine hundred eighty-one".