556050121 has 4 divisors (see below), whose sum is σ = 606600144. Its totient is φ = 505500100.

The previous prime is 556050113. The next prime is 556050133. The reversal of 556050121 is 121050655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 556050121 - 2³ = 556050113 is a prime.

It is a super-2 number, since 2×556050121² = 618383474128229282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556050221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25274995 + ... + 25275016.

It is an arithmetic number, because the mean of its divisors is an integer number (151650036).

Almost surely, 2^556050121 is an apocalyptic number.

It is an amenable number.

556050121 is a deficient number, since it is larger than the sum of its proper divisors (50550023).

556050121 is a wasteful number, since it uses less digits than its factorization.

556050121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50550022.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 556050121 is about 23580.7150230861. The cubic root of 556050121 is about 822.3145597466.

The spelling of 556050121 in words is "five hundred fifty-six million, fifty thousand, one hundred twenty-one".