1252511223 has 8 divisors (see below), whose sum is σ = 1672315008. Its totient is φ = 833857464.

The previous prime is 1252511203. The next prime is 1252511243. The reversal of 1252511223 is 3221152521.

It is an interprime number because it is at equal distance from previous prime (1252511203) and next prime (1252511243).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252511223 - 2⁵ = 1252511191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252511193 and 1252511202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252511203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284961 + ... + 289322.

It is an arithmetic number, because the mean of its divisors is an integer number (209039376).

Almost surely, 2^1252511223 is an apocalyptic number.

1252511223 is a deficient number, since it is larger than the sum of its proper divisors (419803785).

1252511223 is an equidigital number, since it uses as much as digits as its factorization.

1252511223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575013.

The product of its digits is 1200, while the sum is 24.

The square root of 1252511223 is about 35390.8352967262. The cubic root of 1252511223 is about 1077.9382312757.

Adding to 1252511223 its reverse (3221152521), we get a palindrome (4473663744).

The spelling of 1252511223 in words is "one billion, two hundred fifty-two million, five hundred eleven thousand, two hundred twenty-three".