1252055171 has 4 divisors (see below), whose sum is σ = 1282593144. Its totient is φ = 1221517200.

The previous prime is 1252055143. The next prime is 1252055261. The reversal of 1252055171 is 1715502521.

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

It is a cyclic number.

It is not a de Polignac number, because 1252055171 - 2¹⁰ = 1252054147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252055771) 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, 15268925 + ... + 15269006.

It is an arithmetic number, because the mean of its divisors is an integer number (320648286).

Almost surely, 2^1252055171 is an apocalyptic number.

1252055171 is a deficient number, since it is larger than the sum of its proper divisors (30537973).

1252055171 is an equidigital number, since it uses as much as digits as its factorization.

1252055171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30537972.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 1252055171 is about 35384.3916296437. The cubic root of 1252055171 is about 1077.8073859908.

Adding to 1252055171 its reverse (1715502521), we get a palindrome (2967557692).

The spelling of 1252055171 in words is "one billion, two hundred fifty-two million, fifty-five thousand, one hundred seventy-one".