125525012530 has 32 divisors (see below), whose sum is σ = 226842629040. Its totient is φ = 50010670080.

The previous prime is 125525012519. The next prime is 125525012537. The reversal of 125525012530 is 35210525521.

It can be written as a sum of positive squares in 8 ways, for example, as 9774683689 + 115750328841 = 98867^2 + 340221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125525012492 and 125525012501.

It is not an unprimeable number, because it can be changed into a prime (125525012537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9768910 + ... + 9781750.

Almost surely, 2^125525012530 is an apocalyptic number.

125525012530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125525012530 is a deficient number, since it is larger than the sum of its proper divisors (101317616510).

125525012530 is a wasteful number, since it uses less digits than its factorization.

125525012530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16654.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 125525012530 in words is "one hundred twenty-five billion, five hundred twenty-five million, twelve thousand, five hundred thirty".