125426565 has 24 divisors (see below), whose sum is σ = 237171168. Its totient is φ = 60812640.

The previous prime is 125426549. The next prime is 125426569. The reversal of 125426565 is 565624521.

It is not a de Polignac number, because 125426565 - 2⁴ = 125426549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125426569) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 126199 + ... + 127188.

It is an arithmetic number, because the mean of its divisors is an integer number (9882132).

Almost surely, 2^125426565 is an apocalyptic number.

125426565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125426565 is a deficient number, since it is larger than the sum of its proper divisors (111744603).

125426565 is a wasteful number, since it uses less digits than its factorization.

125426565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253409 (or 253406 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 125426565 is about 11199.4002071540. The cubic root of 125426565 is about 500.5681075964.

The spelling of 125426565 in words is "one hundred twenty-five million, four hundred twenty-six thousand, five hundred sixty-five".