556122051 has 24 divisors (see below), whose sum is σ = 851358480. Its totient is φ = 358771680.

The previous prime is 556122031. The next prime is 556122131. The reversal of 556122051 is 150221655.

It is not a de Polignac number, because 556122051 - 2⁵ = 556122019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556122031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15231 + ... + 36663.

It is an arithmetic number, because the mean of its divisors is an integer number (35473270).

Almost surely, 2^556122051 is an apocalyptic number.

556122051 is a deficient number, since it is larger than the sum of its proper divisors (295236429).

556122051 is a wasteful number, since it uses less digits than its factorization.

556122051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21504 (or 21467 counting only the distinct ones).

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

The square root of 556122051 is about 23582.2401607650. The cubic root of 556122051 is about 822.3500161043.

The spelling of 556122051 in words is "five hundred fifty-six million, one hundred twenty-two thousand, fifty-one".