125522251 has 2 divisors, whose sum is σ = 125522252. Its totient is φ = 125522250.

The previous prime is 125522213. The next prime is 125522261. The reversal of 125522251 is 152225521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125522251 - 2⁷ = 125522123 is a prime.

It is a super-2 number, since 2×125522251² = 31511670992214002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125522261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62761125 + 62761126.

It is an arithmetic number, because the mean of its divisors is an integer number (62761126).

Almost surely, 2^125522251 is an apocalyptic number.

125522251 is a deficient number, since it is larger than the sum of its proper divisors (1).

125522251 is an equidigital number, since it uses as much as digits as its factorization.

125522251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000, while the sum is 25.

The square root of 125522251 is about 11203.6713179207. The cubic root of 125522251 is about 500.6953671474.

Adding to 125522251 its reverse (152225521), we get a palindrome (277747772).

The spelling of 125522251 in words is "one hundred twenty-five million, five hundred twenty-two thousand, two hundred fifty-one".