125515253 has 4 divisors (see below), whose sum is σ = 125554080. Its totient is φ = 125476428.

The previous prime is 125515241. The next prime is 125515259. The reversal of 125515253 is 352515521.

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 a de Polignac number, because none of the positive numbers 2^k-125515253 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 (125515259) 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, 14075 + ... + 21192.

It is an arithmetic number, because the mean of its divisors is an integer number (31388520).

Almost surely, 2^125515253 is an apocalyptic number.

It is an amenable number.

125515253 is a deficient number, since it is larger than the sum of its proper divisors (38827).

125515253 is an equidigital number, since it uses as much as digits as its factorization.

125515253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38826.

The product of its digits is 7500, while the sum is 29.

The square root of 125515253 is about 11203.3590052270. The cubic root of 125515253 is about 500.6860622067.

The spelling of 125515253 in words is "one hundred twenty-five million, five hundred fifteen thousand, two hundred fifty-three".