254993453 has 24 divisors (see below), whose sum is σ = 305507520. Its totient is φ = 210936960.

The previous prime is 254993449. The next prime is 254993461. The reversal of 254993453 is 354399452.

It is not a de Polignac number, because 254993453 - 2² = 254993449 is a prime.

It is a super-2 number, since 2×254993453² = 130043322145726418, 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 (254993443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134768 + ... + 136646.

It is an arithmetic number, because the mean of its divisors is an integer number (12729480).

Almost surely, 2^254993453 is an apocalyptic number.

It is an amenable number.

254993453 is a deficient number, since it is larger than the sum of its proper divisors (50514067).

254993453 is a wasteful number, since it uses less digits than its factorization.

254993453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989 (or 1976 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The square root of 254993453 is about 15968.5144268338. The cubic root of 254993453 is about 634.1271434778.

The spelling of 254993453 in words is "two hundred fifty-four million, nine hundred ninety-three thousand, four hundred fifty-three".