254638516 has 24 divisors (see below), whose sum is σ = 486563616. Its totient is φ = 115641120.

The previous prime is 254638511. The next prime is 254638519. The reversal of 254638516 is 615836452.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254638511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69810 + ... + 73366.

It is an arithmetic number, because the mean of its divisors is an integer number (20273484).

Almost surely, 2^254638516 is an apocalyptic number.

It is an amenable number.

254638516 is a deficient number, since it is larger than the sum of its proper divisors (231925100).

254638516 is a wasteful number, since it uses less digits than its factorization.

254638516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199 (or 5197 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 254638516 is about 15957.3969055106. The cubic root of 254638516 is about 633.8327833744.

The spelling of 254638516 in words is "two hundred fifty-four million, six hundred thirty-eight thousand, five hundred sixteen".