556642051 has 8 divisors (see below), whose sum is σ = 637528320. Its totient is φ = 476097288.

The previous prime is 556642043. The next prime is 556642081. The reversal of 556642051 is 150246655.

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 556642051 - 2³ = 556642043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556641998 and 556642016.

It is not an unprimeable number, because it can be changed into a prime (556642001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81871 + ... + 88408.

It is an arithmetic number, because the mean of its divisors is an integer number (79691040).

Almost surely, 2^556642051 is an apocalyptic number.

556642051 is a deficient number, since it is larger than the sum of its proper divisors (80886269).

556642051 is a wasteful number, since it uses less digits than its factorization.

556642051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170753.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 556642051 is about 23593.2628307320. The cubic root of 556642051 is about 822.6062481039.

The spelling of 556642051 in words is "five hundred fifty-six million, six hundred forty-two thousand, fifty-one".