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25056331 is a prime number
BaseRepresentation
bin101111110010…
…1010001001011
31202010222211021
41133211101023
522403300311
62253013311
7422655346
oct137452113
952128737
1025056331
1113164213
128484237
135263a41
14348345d
1522ee171
hex17e544b

25056331 has 2 divisors, whose sum is σ = 25056332. Its totient is φ = 25056330.

The previous prime is 25056329. The next prime is 25056349. The reversal of 25056331 is 13365052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25056331 - 21 = 25056329 is a prime.

It is a super-2 number, since 2×250563312 = 1255639446363122, which contains 22 as substring.

Together with 25056329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25056296 and 25056305.

It is not a weakly prime, because it can be changed into another prime (25056391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12528165 + 12528166.

It is an arithmetic number, because the mean of its divisors is an integer number (12528166).

Almost surely, 225056331 is an apocalyptic number.

25056331 is a deficient number, since it is larger than the sum of its proper divisors (1).

25056331 is an equidigital number, since it uses as much as digits as its factorization.

25056331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25056331 is about 5005.6299303884. The cubic root of 25056331 is about 292.6212262017.

It can be divided in two parts, 2505 and 6331, that added together give a square (8836 = 942).

The spelling of 25056331 in words is "twenty-five million, fifty-six thousand, three hundred thirty-one".