125400053 has 4 divisors (see below), whose sum is σ = 129445248. Its totient is φ = 121354860.

The previous prime is 125400047. The next prime is 125400151. The reversal of 125400053 is 350004521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125400053 - 2⁸ = 125399797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125399998 and 125400034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125406053) 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 3 ways as a sum of consecutive naturals, for example, 2022551 + ... + 2022612.

It is an arithmetic number, because the mean of its divisors is an integer number (32361312).

Almost surely, 2^125400053 is an apocalyptic number.

It is an amenable number.

125400053 is a deficient number, since it is larger than the sum of its proper divisors (4045195).

125400053 is an equidigital number, since it uses as much as digits as its factorization.

125400053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045194.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 125400053 is about 11198.2165097840. The cubic root of 125400053 is about 500.5328359700.

Adding to 125400053 its reverse (350004521), we get a palindrome (475404574).

The spelling of 125400053 in words is "one hundred twenty-five million, four hundred thousand, fifty-three".