5456881 has 8 divisors (see below), whose sum is σ = 5805000. Its totient is φ = 5111808.

The previous prime is 5456879. The next prime is 5456897. The reversal of 5456881 is 1886545.

5456881 = 384² + 385² + ... + 417².

It can be written as a sum of positive squares in 4 ways, for example, as 2944656 + 2512225 = 1716^2 + 1585^2 .

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

It is a 5-Lehmer number, since φ(5456881) divides (5456881-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 5456881 - 2¹ = 5456879 is a prime.

It is a super-2 number, since 2×5456881² = 59555100496322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5456881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5456821) 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, 3745 + ... + 4993.

It is an arithmetic number, because the mean of its divisors is an integer number (725625).

It is a Poulet number, since it divides 2^5456880-1.

Almost surely, 2^5456881 is an apocalyptic number.

5456881 is the 1249-th nonagonal number.

It is an amenable number.

5456881 is a deficient number, since it is larger than the sum of its proper divisors (348119).

5456881 is a wasteful number, since it uses less digits than its factorization.

5456881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523.

The product of its digits is 38400, while the sum is 37.

The square root of 5456881 is about 2335.9967893814. The cubic root of 5456881 is about 176.0549178655.

The spelling of 5456881 in words is "five million, four hundred fifty-six thousand, eight hundred eighty-one".