556251401 has 8 divisors (see below), whose sum is σ = 559948800. Its totient is φ = 552562560.

The previous prime is 556251379. The next prime is 556251413. The reversal of 556251401 is 104152655.

It is a happy number.

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 556251401 - 2⁶ = 556251337 is a prime.

It is a super-2 number, since 2×556251401² = 618831242228925602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556251461) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 173945 + ... + 177113.

It is an arithmetic number, because the mean of its divisors is an integer number (69993600).

Almost surely, 2^556251401 is an apocalyptic number.

It is an amenable number.

556251401 is a deficient number, since it is larger than the sum of its proper divisors (3697399).

556251401 is a wasteful number, since it uses less digits than its factorization.

556251401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 556251401 is about 23584.9825312634. The cubic root of 556251401 is about 822.4137687335.

The spelling of 556251401 in words is "five hundred fifty-six million, two hundred fifty-one thousand, four hundred one".