125000053 has 4 divisors (see below), whose sum is σ = 125038060. Its totient is φ = 124962048.

The previous prime is 125000003. The next prime is 125000077. The reversal of 125000053 is 350000521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64673764 + 60326289 = 8042^2 + 7767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125000053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125000003) 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 3 ways as a sum of consecutive naturals, for example, 13548 + ... + 20821.

It is an arithmetic number, because the mean of its divisors is an integer number (31259515).

Almost surely, 2^125000053 is an apocalyptic number.

It is an amenable number.

125000053 is a deficient number, since it is larger than the sum of its proper divisors (38007).

125000053 is an equidigital number, since it uses as much as digits as its factorization.

125000053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38006.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 125000053 is about 11180.3422577308. The cubic root of 125000053 is about 500.0000706667. Note that the first 4 decimals are identical.

Adding to 125000053 its reverse (350000521), we get a palindrome (475000574).

The spelling of 125000053 in words is "one hundred twenty-five million, fifty-three", and thus it is an aban number.