125200420053 has 4 divisors (see below), whose sum is σ = 166933893408. Its totient is φ = 83466946700.

The previous prime is 125200420049. The next prime is 125200420091. The reversal of 125200420053 is 350024002521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350024002521 = 3 ⋅116674667507.

It is a cyclic number.

It is not a de Polignac number, because 125200420053 - 2² = 125200420049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125200420253) 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, 20866736673 + ... + 20866736678.

It is an arithmetic number, because the mean of its divisors is an integer number (41733473352).

Almost surely, 2^125200420053 is an apocalyptic number.

It is an amenable number.

125200420053 is a deficient number, since it is larger than the sum of its proper divisors (41733473355).

125200420053 is an equidigital number, since it uses as much as digits as its factorization.

125200420053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41733473354.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 125200420053 its reverse (350024002521), we get a palindrome (475224422574).

The spelling of 125200420053 in words is "one hundred twenty-five billion, two hundred million, four hundred twenty thousand, fifty-three".