125425499 has 4 divisors (see below), whose sum is σ = 125804760. Its totient is φ = 125046240.

The previous prime is 125425457. The next prime is 125425501. The reversal of 125425499 is 994524521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994524521 = 29 ⋅34293949.

It is a cyclic number.

It is not a de Polignac number, because 125425499 - 2⁸ = 125425243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125425429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189134 + ... + 189795.

It is an arithmetic number, because the mean of its divisors is an integer number (31451190).

Almost surely, 2^125425499 is an apocalyptic number.

125425499 is a deficient number, since it is larger than the sum of its proper divisors (379261).

125425499 is an equidigital number, since it uses as much as digits as its factorization.

125425499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379260.

The product of its digits is 129600, while the sum is 41.

The square root of 125425499 is about 11199.3526152184. The cubic root of 125425499 is about 500.5666894834.

The spelling of 125425499 in words is "one hundred twenty-five million, four hundred twenty-five thousand, four hundred ninety-nine".