125525413 has 4 divisors (see below), whose sum is σ = 135181228. Its totient is φ = 115869600.

The previous prime is 125525363. The next prime is 125525437. The reversal of 125525413 is 314525521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314525521 = 43 ⋅7314547.

It can be written as a sum of positive squares in 2 ways, for example, as 58400164 + 67125249 = 7642^2 + 8193^2 .

It is a cyclic number.

It is not a de Polignac number, because 125525413 - 2¹³ = 125517221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125525443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827888 + ... + 4827913.

It is an arithmetic number, because the mean of its divisors is an integer number (33795307).

Almost surely, 2^125525413 is an apocalyptic number.

125525413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

125525413 is a deficient number, since it is larger than the sum of its proper divisors (9655815).

125525413 is an equidigital number, since it uses as much as digits as its factorization.

125525413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655814.

The product of its digits is 6000, while the sum is 28.

The square root of 125525413 is about 11203.8124314896. The cubic root of 125525413 is about 500.6995714099.

The spelling of 125525413 in words is "one hundred twenty-five million, five hundred twenty-five thousand, four hundred thirteen".