252021023 has 8 divisors (see below), whose sum is σ = 259660992. Its totient is φ = 244424736.

The previous prime is 252021013. The next prime is 252021047. The reversal of 252021023 is 320120252.

252021023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 252021023 - 2¹² = 252016927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252020992 and 252021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252021013) 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, 986 + ... + 22472.

It is an arithmetic number, because the mean of its divisors is an integer number (32457624).

Almost surely, 2^252021023 is an apocalyptic number.

252021023 is a deficient number, since it is larger than the sum of its proper divisors (7639969).

252021023 is a wasteful number, since it uses less digits than its factorization.

252021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21841.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 252021023 is about 15875.1700148376. The cubic root of 252021023 is about 631.6535239370.

Adding to 252021023 its reverse (320120252), we get a palindrome (572141275).

The spelling of 252021023 in words is "two hundred fifty-two million, twenty-one thousand, twenty-three".