555121413 has 48 divisors (see below), whose sum is σ = 1009008000. Its totient is φ = 285690240.

The previous prime is 555121409. The next prime is 555121421. The reversal of 555121413 is 314121555.

555121413 is a `hidden beast` number, since 5 + 5 + 512 + 141 + 3 = 666.

It is not a de Polignac number, because 555121413 - 2² = 555121409 is a prime.

It is a super-2 number, since 2×555121413² = 616319566342233138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555121913) 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 47 ways as a sum of consecutive naturals, for example, 71863 + ... + 79211.

It is an arithmetic number, because the mean of its divisors is an integer number (21021000).

Almost surely, 2^555121413 is an apocalyptic number.

It is an amenable number.

555121413 is a deficient number, since it is larger than the sum of its proper divisors (453886587).

555121413 is a wasteful number, since it uses less digits than its factorization.

555121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482 (or 7479 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 555121413 is about 23561.0146852804. The cubic root of 555121413 is about 821.8564981170.

Adding to 555121413 its reverse (314121555), we get a palindrome (869242968).

The spelling of 555121413 in words is "five hundred fifty-five million, one hundred twenty-one thousand, four hundred thirteen".