556325421 has 8 divisors (see below), whose sum is σ = 748700064. Its totient is φ = 367417200.

The previous prime is 556325389. The next prime is 556325467. The reversal of 556325421 is 124523655.

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

It is not a de Polignac number, because 556325421 - 2⁵ = 556325389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556321421) 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, 866230 + ... + 866871.

It is an arithmetic number, because the mean of its divisors is an integer number (93587508).

Almost surely, 2^556325421 is an apocalyptic number.

It is an amenable number.

556325421 is a deficient number, since it is larger than the sum of its proper divisors (192374643).

556325421 is a wasteful number, since it uses less digits than its factorization.

556325421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733211.

The product of its digits is 36000, while the sum is 33.

The square root of 556325421 is about 23586.5516979486. The cubic root of 556325421 is about 822.4502464646.

The spelling of 556325421 in words is "five hundred fifty-six million, three hundred twenty-five thousand, four hundred twenty-one".