2257259981 has 8 divisors (see below), whose sum is σ = 2268680160. Its totient is φ = 2245863888.

The previous prime is 2257259971. The next prime is 2257259993. The reversal of 2257259981 is 1899527522.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2257259981 - 2¹⁸ = 2256997837 is a prime.

It is a super-2 number, since 2×2257259981² = 10190445243648240722, 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 (2257259971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199190 + ... + 210216.

It is an arithmetic number, because the mean of its divisors is an integer number (283585020).

Almost surely, 2^2257259981 is an apocalyptic number.

It is an amenable number.

2257259981 is a deficient number, since it is larger than the sum of its proper divisors (11420179).

2257259981 is a wasteful number, since it uses less digits than its factorization.

2257259981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12043.

The product of its digits is 907200, while the sum is 50.

The square root of 2257259981 is about 47510.6301894639. The cubic root of 2257259981 is about 1311.7785567558.

The spelling of 2257259981 in words is "two billion, two hundred fifty-seven million, two hundred fifty-nine thousand, nine hundred eighty-one".