125711255 has 4 divisors (see below), whose sum is σ = 150853512. Its totient is φ = 100569000.

The previous prime is 125711249. The next prime is 125711279. The reversal of 125711255 is 552117521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552117521 = 41 ⋅13466281.

It is not a de Polignac number, because 125711255 - 2¹² = 125707159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12571121 + ... + 12571130.

It is an arithmetic number, because the mean of its divisors is an integer number (37713378).

Almost surely, 2^125711255 is an apocalyptic number.

125711255 is a deficient number, since it is larger than the sum of its proper divisors (25142257).

125711255 is an equidigital number, since it uses as much as digits as its factorization.

125711255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25142256.

The product of its digits is 3500, while the sum is 29.

The square root of 125711255 is about 11212.1030587486. The cubic root of 125711255 is about 500.9465469669.

Adding to 125711255 its reverse (552117521), we get a palindrome (677828776).

The spelling of 125711255 in words is "one hundred twenty-five million, seven hundred eleven thousand, two hundred fifty-five".