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26125949 is a prime number
BaseRepresentation
bin110001110101…
…0011001111101
31211011100001202
41203222121331
523142012244
62331545245
7435031643
oct143523175
954140052
1026125949
11138248a3
1288bb225
135549855
143681193
15246104e
hex18ea67d

26125949 has 2 divisors, whose sum is σ = 26125950. Its totient is φ = 26125948.

The previous prime is 26125909. The next prime is 26125951. The reversal of 26125949 is 94952162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22629049 + 3496900 = 4757^2 + 1870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26125949 is a prime.

It is a super-2 number, since 2×261259492 = 1365130422301202, which contains 22 as substring.

Together with 26125951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26125909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13062974 + 13062975.

It is an arithmetic number, because the mean of its divisors is an integer number (13062975).

Almost surely, 226125949 is an apocalyptic number.

It is an amenable number.

26125949 is a deficient number, since it is larger than the sum of its proper divisors (1).

26125949 is an equidigital number, since it uses as much as digits as its factorization.

26125949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 26125949 is about 5111.3549084367. The cubic root of 26125949 is about 296.7271998403.

The spelling of 26125949 in words is "twenty-six million, one hundred twenty-five thousand, nine hundred forty-nine".