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61225253 is a prime number
BaseRepresentation
bin1110100110001…
…1100100100101
311021012120020222
43221203210211
5111133202003
610024134125
71342256165
oct351434445
9137176228
1061225253
1131618491
1218607345
13c8b887b
1481ba5a5
155595c38
hex3a63925

61225253 has 2 divisors, whose sum is σ = 61225254. Its totient is φ = 61225252.

The previous prime is 61225247. The next prime is 61225261. The reversal of 61225253 is 35252216.

61225253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55383364 + 5841889 = 7442^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 61225253 - 26 = 61225189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61225223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30612626 + 30612627.

It is an arithmetic number, because the mean of its divisors is an integer number (30612627).

Almost surely, 261225253 is an apocalyptic number.

It is an amenable number.

61225253 is a deficient number, since it is larger than the sum of its proper divisors (1).

61225253 is an equidigital number, since it uses as much as digits as its factorization.

61225253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 61225253 is about 7824.6567336849. The cubic root of 61225253 is about 394.1336628966.

Adding to 61225253 its reverse (35252216), we get a palindrome (96477469).

The spelling of 61225253 in words is "sixty-one million, two hundred twenty-five thousand, two hundred fifty-three".