254554557156 has 27 divisors (see below), whose sum is σ = 643465005001. Its totient is φ = 84850509984.

The previous prime is 254554557133. The next prime is 254554557247. The reversal of 254554557156 is 651755455452.

The square root of 254554557156 is 504534.

It is a perfect power (a square), and thus also a powerful number.

254554557156 is a `hidden beast` number, since 2 + 5 + 45 + 545 + 5 + 7 + 1 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 162381597156 + 92172960000 = 402966^2 + 303600^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 2985160 + ... + 3069248.

Almost surely, 2^254554557156 is an apocalyptic number.

254554557156 is the 504534-th square number.

It is an amenable number.

254554557156 is an abundant number, since it is smaller than the sum of its proper divisors (388910447845).

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

254554557156 is an frugal number, since it uses more digits than its factorization.

254554557156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168188 (or 84094 counting only the distinct ones).

The product of its digits is 21000000, while the sum is 54.

The spelling of 254554557156 in words is "two hundred fifty-four billion, five hundred fifty-four million, five hundred fifty-seven thousand, one hundred fifty-six".