253666467 has 12 divisors (see below), whose sum is σ = 375344424. Its totient is φ = 164986080.

The previous prime is 253666463. The next prime is 253666493. The reversal of 253666467 is 764666352.

It is not a de Polignac number, because 253666467 - 2² = 253666463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253666463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343353 + ... + 344090.

It is an arithmetic number, because the mean of its divisors is an integer number (31278702).

Almost surely, 2^253666467 is an apocalyptic number.

253666467 is a deficient number, since it is larger than the sum of its proper divisors (121677957).

253666467 is a wasteful number, since it uses less digits than its factorization.

253666467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687490 (or 687487 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 253666467 is about 15926.9101523177. The cubic root of 253666467 is about 633.0252305330.

The spelling of 253666467 in words is "two hundred fifty-three million, six hundred sixty-six thousand, four hundred sixty-seven".