125504535 has 32 divisors (see below), whose sum is σ = 219018240. Its totient is φ = 60997248.

The previous prime is 125504531. The next prime is 125504551. The reversal of 125504535 is 535405521.

It is a happy number.

It is not a de Polignac number, because 125504535 - 2² = 125504531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125504531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11332 + ... + 19478.

It is an arithmetic number, because the mean of its divisors is an integer number (6844320).

Almost surely, 2^125504535 is an apocalyptic number.

125504535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125504535 is a deficient number, since it is larger than the sum of its proper divisors (93513705).

125504535 is a wasteful number, since it uses less digits than its factorization.

125504535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8247.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 125504535 is about 11202.8806563312. The cubic root of 125504535 is about 500.6718102710.

The spelling of 125504535 in words is "one hundred twenty-five million, five hundred four thousand, five hundred thirty-five".