125583523 has 4 divisors (see below), whose sum is σ = 135243808. Its totient is φ = 115923240.

The previous prime is 125583509. The next prime is 125583541. The reversal of 125583523 is 325385521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325385521 = 151 ⋅2154871.

It is a cyclic number.

It is not a de Polignac number, because 125583523 - 2¹⁷ = 125452451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125581523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4830123 + ... + 4830148.

It is an arithmetic number, because the mean of its divisors is an integer number (33810952).

Almost surely, 2^125583523 is an apocalyptic number.

125583523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125583523 is a deficient number, since it is larger than the sum of its proper divisors (9660285).

125583523 is an equidigital number, since it uses as much as digits as its factorization.

125583523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660284.

The product of its digits is 36000, while the sum is 34.

The square root of 125583523 is about 11206.4054451015. The cubic root of 125583523 is about 500.7768231333.

The spelling of 125583523 in words is "one hundred twenty-five million, five hundred eighty-three thousand, five hundred twenty-three".