42504253 has 16 divisors (see below), whose sum is σ = 49522176. Its totient is φ = 36091440.

The previous prime is 42504247. The next prime is 42504271. The reversal of 42504253 is 35240524.

It is not a de Polignac number, because 42504253 - 2¹³ = 42496061 is a prime.

It is a super-2 number, since 2×42504253² = 3613223046176018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42504853) 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, 8926 + ... + 12832.

It is an arithmetic number, because the mean of its divisors is an integer number (3095136).

Almost surely, 2^42504253 is an apocalyptic number.

42504253 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42504253 is a deficient number, since it is larger than the sum of its proper divisors (7017923).

42504253 is a wasteful number, since it uses less digits than its factorization.

42504253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42504253 is about 6519.5285872523. The cubic root of 42504253 is about 348.9882427218.

Adding to 42504253 its reverse (35240524), we get a palindrome (77744777).

The spelling of 42504253 in words is "forty-two million, five hundred four thousand, two hundred fifty-three".