253506263 has 4 divisors (see below), whose sum is σ = 256016328. Its totient is φ = 250996200.

The previous prime is 253506241. The next prime is 253506269. The reversal of 253506263 is 362605352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253506263 - 2¹² = 253502167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253506269) 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, 1254881 + ... + 1255082.

It is an arithmetic number, because the mean of its divisors is an integer number (64004082).

Almost surely, 2^253506263 is an apocalyptic number.

253506263 is a deficient number, since it is larger than the sum of its proper divisors (2510065).

253506263 is a wasteful number, since it uses less digits than its factorization.

253506263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510064.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 253506263 is about 15921.8800083407. The cubic root of 253506263 is about 632.8919393232.

It can be divided in two parts, 25350 and 6263, that added together give a palindrome (31613).

The spelling of 253506263 in words is "two hundred fifty-three million, five hundred six thousand, two hundred sixty-three".