125505469 has 16 divisors (see below), whose sum is σ = 137249280. Its totient is φ = 114359040.

The previous prime is 125505451. The next prime is 125505473. The reversal of 125505469 is 964505521.

It is a cyclic number.

It is not a de Polignac number, because 125505469 - 2⁵ = 125505437 is a prime.

It is a super-2 number, since 2×125505469² = 31503245497819922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125505409) 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 15 ways as a sum of consecutive naturals, for example, 55764 + ... + 57970.

It is an arithmetic number, because the mean of its divisors is an integer number (8578080).

Almost surely, 2^125505469 is an apocalyptic number.

125505469 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125505469 is a deficient number, since it is larger than the sum of its proper divisors (11743811).

125505469 is a wasteful number, since it uses less digits than its factorization.

125505469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 125505469 is about 11202.9223419606. The cubic root of 125505469 is about 500.6730522615.

The spelling of 125505469 in words is "one hundred twenty-five million, five hundred five thousand, four hundred sixty-nine".