254191656 has 16 divisors (see below), whose sum is σ = 635479200. Its totient is φ = 84730544.

The previous prime is 254191589. The next prime is 254191669. The reversal of 254191656 is 656191452.

It is a super-2 number, since 2×254191656² = 129226795960044672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5295636 + ... + 5295683.

It is an arithmetic number, because the mean of its divisors is an integer number (39717450).

Almost surely, 2^254191656 is an apocalyptic number.

It is an amenable number.

254191656 is an abundant number, since it is smaller than the sum of its proper divisors (381287544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

254191656 is a wasteful number, since it uses less digits than its factorization.

254191656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10591328 (or 10591324 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 254191656 is about 15943.3891001882. The cubic root of 254191656 is about 633.4617994863.

The spelling of 254191656 in words is "two hundred fifty-four million, one hundred ninety-one thousand, six hundred fifty-six".