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2558358061 = 7252211389
BaseRepresentation
bin1001100001111101…
…0111001000101101
320121022000001111021
42120133113020231
520214414424221
61101510254141
7120253453600
oct23037271055
96538001437
102558358061
1110a3143306
125b4957351
1331a052c4c
141a3ac2337
15ee907041
hex987d722d

2558358061 has 6 divisors (see below), whose sum is σ = 2976049230. Its totient is φ = 2192878296.

The previous prime is 2558357953. The next prime is 2558358091. The reversal of 2558358061 is 1608538552.

It can be written as a sum of positive squares in only one way, i.e., 2361376836 + 196981225 = 48594^2 + 14035^2 .

It is not a de Polignac number, because 2558358061 - 211 = 2558356013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2558357999 and 2558358017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2558358091) 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 in 5 ways as a sum of consecutive naturals, for example, 26105646 + ... + 26105743.

It is an arithmetic number, because the mean of its divisors is an integer number (496008205).

Almost surely, 22558358061 is an apocalyptic number.

It is an amenable number.

2558358061 is a deficient number, since it is larger than the sum of its proper divisors (417691169).

2558358061 is an equidigital number, since it uses as much as digits as its factorization.

2558358061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52211403 (or 52211396 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 2558358061 is about 50580.2141256836. The cubic root of 2558358061 is about 1367.6882285211.

The spelling of 2558358061 in words is "two billion, five hundred fifty-eight million, three hundred fifty-eight thousand, sixty-one".

Divisors: 1 7 49 52211389 365479723 2558358061