125508530 has 16 divisors (see below), whose sum is σ = 258189120. Its totient is φ = 43031472.

The previous prime is 125508499. The next prime is 125508541. The reversal of 125508530 is 35805521.

It is a super-2 number, since 2×125508530² = 31504782205521800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125508493 and 125508502.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 896420 + ... + 896559.

It is an arithmetic number, because the mean of its divisors is an integer number (16136820).

Almost surely, 2^125508530 is an apocalyptic number.

125508530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125508530 is an abundant number, since it is smaller than the sum of its proper divisors (132680590).

125508530 is a wasteful number, since it uses less digits than its factorization.

125508530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792993.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 125508530 is about 11203.0589572670. The cubic root of 125508530 is about 500.6771225960.

The spelling of 125508530 in words is "one hundred twenty-five million, five hundred eight thousand, five hundred thirty".