252532403 has 4 divisors (see below), whose sum is σ = 252564840. Its totient is φ = 252499968.

The previous prime is 252532391. The next prime is 252532409. The reversal of 252532403 is 304235252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 252532403 - 2¹⁶ = 252466867 is a prime.

It is a super-2 number, since 2×252532403² = 127545229129908818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252532409) 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, 3251 + ... + 22707.

It is an arithmetic number, because the mean of its divisors is an integer number (63141210).

Almost surely, 2^252532403 is an apocalyptic number.

252532403 is a deficient number, since it is larger than the sum of its proper divisors (32437).

252532403 is a wasteful number, since it uses less digits than its factorization.

252532403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32436.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 252532403 is about 15891.2681369361. The cubic root of 252532403 is about 632.0804681430.

Adding to 252532403 its reverse (304235252), we get a palindrome (556767655).

The spelling of 252532403 in words is "two hundred fifty-two million, five hundred thirty-two thousand, four hundred three".