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125512253 is a prime number
BaseRepresentation
bin1110111101100…
…10101000111101
322202011200102222
413132302220331
5224112343003
620242055125
73052556636
oct736625075
9282150388
10125512253
1164937239
123604a4a5
1320006c09
141295288d
15b043c38
hex77b2a3d

125512253 has 2 divisors, whose sum is σ = 125512254. Its totient is φ = 125512252.

The previous prime is 125512243. The next prime is 125512267. The reversal of 125512253 is 352215521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111049444 + 14462809 = 10538^2 + 3803^2 .

It is a cyclic number.

It is not a de Polignac number, because 125512253 - 210 = 125511229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125512213) 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, 62756126 + 62756127.

It is an arithmetic number, because the mean of its divisors is an integer number (62756127).

Almost surely, 2125512253 is an apocalyptic number.

It is an amenable number.

125512253 is a deficient number, since it is larger than the sum of its proper divisors (1).

125512253 is an equidigital number, since it uses as much as digits as its factorization.

125512253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 26.

The square root of 125512253 is about 11203.2251160101. The cubic root of 125512253 is about 500.6820731294.

Adding to 125512253 its reverse (352215521), we get a palindrome (477727774).

The spelling of 125512253 in words is "one hundred twenty-five million, five hundred twelve thousand, two hundred fifty-three".