125205253 has 4 divisors (see below), whose sum is σ = 125437228. Its totient is φ = 124973280.

The previous prime is 125205229. The next prime is 125205277. The reversal of 125205253 is 352502521.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (125205229) and next prime (125205277).

It can be written as a sum of positive squares in 2 ways, for example, as 80676324 + 44528929 = 8982^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 125205253 - 2⁹ = 125204741 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 (125205653) 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, 115176 + ... + 116257.

It is an arithmetic number, because the mean of its divisors is an integer number (31359307).

Almost surely, 2^125205253 is an apocalyptic number.

It is an amenable number.

125205253 is a deficient number, since it is larger than the sum of its proper divisors (231975).

125205253 is an equidigital number, since it uses as much as digits as its factorization.

125205253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231974.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 125205253 is about 11189.5153156873. The cubic root of 125205253 is about 500.2735210119.

Adding to 125205253 its reverse (352502521), we get a palindrome (477707774).

The spelling of 125205253 in words is "one hundred twenty-five million, two hundred five thousand, two hundred fifty-three".