2681565254 has 8 divisors (see below), whose sum is σ = 4082383128. Its totient is φ = 1320770880.

The previous prime is 2681565241. The next prime is 2681565287. The reversal of 2681565254 is 4525651862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2681565254² = 14381584422920169032, which contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 10005707 + ... + 10005974.

It is an arithmetic number, because the mean of its divisors is an integer number (510297891).

Almost surely, 2^2681565254 is an apocalyptic number.

2681565254 is a deficient number, since it is larger than the sum of its proper divisors (1400817874).

2681565254 is a wasteful number, since it uses less digits than its factorization.

2681565254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011750.

The product of its digits is 576000, while the sum is 44.

The square root of 2681565254 is about 51783.8319748549. The cubic root of 2681565254 is about 1389.3002799504.

The spelling of 2681565254 in words is "two billion, six hundred eighty-one million, five hundred sixty-five thousand, two hundred fifty-four".