556021612 has 6 divisors (see below), whose sum is σ = 973037828. Its totient is φ = 278010804.

The previous prime is 556021603. The next prime is 556021639. The reversal of 556021612 is 216120655.

It is a super-2 number, since 2×556021612² = 618320066022157088, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 69502698 + ... + 69502705.

Almost surely, 2^556021612 is an apocalyptic number.

It is an amenable number.

556021612 is a deficient number, since it is larger than the sum of its proper divisors (417016216).

556021612 is a wasteful number, since it uses less digits than its factorization.

556021612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139005407 (or 139005405 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 556021612 is about 23580.1105171286. The cubic root of 556021612 is about 822.3005059977.

It can be divided in two parts, 5560 and 21612, that added together give a palindrome (27172).

The spelling of 556021612 in words is "five hundred fifty-six million, twenty-one thousand, six hundred twelve".