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556007057 = 961957803
BaseRepresentation
bin100001001000111…
…111111010010001
31102202020002021222
4201020333322101
52114314211212
6131101054425
716530660554
oct4110777221
91382202258
10556007057
11265940371
12136257415
138b264778
1453bb469b
1533c2cc72
hex2123fe91

556007057 has 4 divisors (see below), whose sum is σ = 556074480. Its totient is φ = 555939636.

The previous prime is 556006999. The next prime is 556007107. The reversal of 556007057 is 750700655.

556007057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750700655 = 5150140131.

It is a cyclic number.

It is not a de Polignac number, because 556007057 - 26 = 556006993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556007657) 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, 19283 + ... + 38520.

It is an arithmetic number, because the mean of its divisors is an integer number (139018620).

Almost surely, 2556007057 is an apocalyptic number.

It is an amenable number.

556007057 is a deficient number, since it is larger than the sum of its proper divisors (67423).

556007057 is an equidigital number, since it uses as much as digits as its factorization.

556007057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67422.

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 556007057 is about 23579.8018863603. The cubic root of 556007057 is about 822.2933308040.

The spelling of 556007057 in words is "five hundred fifty-six million, seven thousand, fifty-seven".

Divisors: 1 9619 57803 556007057