125425515 has 8 divisors (see below), whose sum is σ = 200680848. Its totient is φ = 66893600.

The previous prime is 125425513. The next prime is 125425543. The reversal of 125425515 is 515524521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125425515 - 2¹ = 125425513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125425511) 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 7 ways as a sum of consecutive naturals, for example, 4180836 + ... + 4180865.

It is an arithmetic number, because the mean of its divisors is an integer number (25085106).

Almost surely, 2^125425515 is an apocalyptic number.

125425515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125425515 is a deficient number, since it is larger than the sum of its proper divisors (75255333).

125425515 is an equidigital number, since it uses as much as digits as its factorization.

125425515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8361709.

The product of its digits is 10000, while the sum is 30.

The square root of 125425515 is about 11199.3533295454. The cubic root of 125425515 is about 500.5667107685.

The spelling of 125425515 in words is "one hundred twenty-five million, four hundred twenty-five thousand, five hundred fifteen".