125425457 has 2 divisors, whose sum is σ = 125425458. Its totient is φ = 125425456.

The previous prime is 125425451. The next prime is 125425501. The reversal of 125425457 is 754524521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115433536 + 9991921 = 10744^2 + 3161^2 .

It is a cyclic number.

It is not a de Polignac number, because 125425457 - 2¹⁴ = 125409073 is a prime.

It is not a weakly prime, because it can be changed into another prime (125425451) 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, 62712728 + 62712729.

It is an arithmetic number, because the mean of its divisors is an integer number (62712729).

Almost surely, 2^125425457 is an apocalyptic number.

It is an amenable number.

125425457 is a deficient number, since it is larger than the sum of its proper divisors (1).

125425457 is an equidigital number, since it uses as much as digits as its factorization.

125425457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 35.

The square root of 125425457 is about 11199.3507401099. The cubic root of 125425457 is about 500.5666336101.

Adding to 125425457 its reverse (754524521), we get a palindrome (879949978).

The spelling of 125425457 in words is "one hundred twenty-five million, four hundred twenty-five thousand, four hundred fifty-seven".