253504663 has 16 divisors (see below), whose sum is σ = 273637440. Its totient is φ = 233998336.

The previous prime is 253504661. The next prime is 253504703. The reversal of 253504663 is 366405352.

It is not a de Polignac number, because 253504663 - 2¹ = 253504661 is a prime.

It is a super-2 number, since 2×253504663² = 128529228325487138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253504661) 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, 206670 + ... + 207892.

It is an arithmetic number, because the mean of its divisors is an integer number (17102340).

Almost surely, 2^253504663 is an apocalyptic number.

253504663 is a deficient number, since it is larger than the sum of its proper divisors (20132777).

253504663 is a wasteful number, since it uses less digits than its factorization.

253504663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 253504663 is about 15921.8297629387. The cubic root of 253504663 is about 632.8906078252.

The spelling of 253504663 in words is "two hundred fifty-three million, five hundred four thousand, six hundred sixty-three".