252211023 has 16 divisors (see below), whose sum is σ = 375550560. Its totient is φ = 167283648.

The previous prime is 252211019. The next prime is 252211033. The reversal of 252211023 is 320112252.

It is not a de Polignac number, because 252211023 - 2² = 252211019 is a prime.

It is a super-2 number, since 2×252211023² = 127220800245413058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252210987 and 252211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252211013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18390 + ... + 29027.

It is an arithmetic number, because the mean of its divisors is an integer number (23471910).

Almost surely, 2^252211023 is an apocalyptic number.

252211023 is a deficient number, since it is larger than the sum of its proper divisors (123339537).

252211023 is a wasteful number, since it uses less digits than its factorization.

252211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47623 (or 47617 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 252211023 is about 15881.1530752650. The cubic root of 252211023 is about 631.8122197222.

Adding to 252211023 its reverse (320112252), we get a palindrome (572323275).

It can be divided in two parts, 25221 and 1023, that added together give a square (26244 = 162²).

The spelling of 252211023 in words is "two hundred fifty-two million, two hundred eleven thousand, twenty-three".