Search a number
-
+
554155831 is a prime number
BaseRepresentation
bin100001000001111…
…011111100110111
31102121202000220001
4201001323330313
52113330441311
6130553252131
716506150445
oct4101737467
91377660801
10554155831
11264896529
12135704047
138aa66c78
1453851b95
15339b44c1
hex2107bf37

554155831 has 2 divisors, whose sum is σ = 554155832. Its totient is φ = 554155830.

The previous prime is 554155801. The next prime is 554155837. The reversal of 554155831 is 138551455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554155831 - 25 = 554155799 is a prime.

It is a super-2 number, since 2×5541558312 = 614177370062601122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554155837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277077915 + 277077916.

It is an arithmetic number, because the mean of its divisors is an integer number (277077916).

Almost surely, 2554155831 is an apocalyptic number.

554155831 is a deficient number, since it is larger than the sum of its proper divisors (1).

554155831 is an equidigital number, since it uses as much as digits as its factorization.

554155831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60000, while the sum is 37.

The square root of 554155831 is about 23540.5146715190. The cubic root of 554155831 is about 821.3797072857.

The spelling of 554155831 in words is "five hundred fifty-four million, one hundred fifty-five thousand, eight hundred thirty-one".