125503253 has 2 divisors, whose sum is σ = 125503254. Its totient is φ = 125503252.

The previous prime is 125503243. The next prime is 125503277. The reversal of 125503253 is 352305521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122036209 + 3467044 = 11047^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 125503253 - 2⁴ = 125503237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125503243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62751626 + 62751627.

It is an arithmetic number, because the mean of its divisors is an integer number (62751627).

Almost surely, 2^125503253 is an apocalyptic number.

It is an amenable number.

125503253 is a deficient number, since it is larger than the sum of its proper divisors (1).

125503253 is an equidigital number, since it uses as much as digits as its factorization.

125503253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 125503253 is about 11202.8234387586. The cubic root of 125503253 is about 500.6701055160.

Adding to 125503253 its reverse (352305521), we get a palindrome (477808774).

The spelling of 125503253 in words is "one hundred twenty-five million, five hundred three thousand, two hundred fifty-three".