125065557 has 12 divisors (see below), whose sum is σ = 180807744. Its totient is φ = 83304360.

The previous prime is 125065553. The next prime is 125065561. The reversal of 125065557 is 755560521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125065553) and next prime (125065561).

It is not a de Polignac number, because 125065557 - 2² = 125065553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125065553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6132 + ... + 16962.

It is an arithmetic number, because the mean of its divisors is an integer number (15067312).

Almost surely, 2^125065557 is an apocalyptic number.

It is an amenable number.

125065557 is a deficient number, since it is larger than the sum of its proper divisors (55742187).

125065557 is a wasteful number, since it uses less digits than its factorization.

125065557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120 (or 12117 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 125065557 is about 11183.2713013679. The cubic root of 125065557 is about 500.0873940570.

The spelling of 125065557 in words is "one hundred twenty-five million, sixty-five thousand, five hundred fifty-seven".