2581495 has 8 divisors (see below), whose sum is σ = 3540384. Its totient is φ = 1770144.

The previous prime is 2581487. The next prime is 2581507. The reversal of 2581495 is 5941852.

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 2581495 - 2³ = 2581487 is a prime.

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 2581495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36844 + ... + 36913.

It is an arithmetic number, because the mean of its divisors is an integer number (442548).

2^2581495 is an apocalyptic number.

2581495 is a deficient number, since it is larger than the sum of its proper divisors (958889).

2581495 is an equidigital number, since it uses as much as digits as its factorization.

2581495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73769.

The product of its digits is 14400, while the sum is 34.

The square root of 2581495 is about 1606.7031461972. The cubic root of 2581495 is about 137.1798834075.

The spelling of 2581495 in words is "two million, five hundred eighty-one thousand, four hundred ninety-five".