2485881 has 6 divisors (see below), whose sum is σ = 3590730. Its totient is φ = 1657248.

The previous prime is 2485867. The next prime is 2485897. The reversal of 2485881 is 1885842.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 837225 = 1284^2 + 915^2 .

It is not a de Polignac number, because 2485881 - 2⁵ = 2485849 is a prime.

It is a super-2 number, since 2×2485881² = 12359208692322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2485801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138096 + ... + 138113.

It is an arithmetic number, because the mean of its divisors is an integer number (598455).

2^2485881 is an apocalyptic number.

It is an amenable number.

2485881 is a deficient number, since it is larger than the sum of its proper divisors (1104849).

2485881 is a wasteful number, since it uses less digits than its factorization.

2485881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276215 (or 276212 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 2485881 is about 1576.6676885127. The cubic root of 2485881 is about 135.4648992472.

It can be divided in two parts, 24 and 85881, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 2485881 in words is "two million, four hundred eighty-five thousand, eight hundred eighty-one".