247504253 has 8 divisors (see below), whose sum is σ = 249436128. Its totient is φ = 245577744.

The previous prime is 247504247. The next prime is 247504261. The reversal of 247504253 is 352405742.

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 247504253 - 2¹⁸ = 247242109 is a prime.

It is a super-2 number, since 2×247504253² = 122516710506176018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247504273) 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, 161750 + ... + 163272.

It is an arithmetic number, because the mean of its divisors is an integer number (31179516).

Almost surely, 2^247504253 is an apocalyptic number.

It is an amenable number.

247504253 is a deficient number, since it is larger than the sum of its proper divisors (1931875).

247504253 is a wasteful number, since it uses less digits than its factorization.

247504253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 247504253 is about 15732.2678911847. The cubic root of 247504253 is about 627.8572141130.

Adding to 247504253 its reverse (352405742), we get a palindrome (599909995).

The spelling of 247504253 in words is "two hundred forty-seven million, five hundred four thousand, two hundred fifty-three".