2542487 has 4 divisors (see below), whose sum is σ = 2585640. Its totient is φ = 2499336.

The previous prime is 2542483. The next prime is 2542511. The reversal of 2542487 is 7842452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2542487 - 2² = 2542483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21488 + ... + 21605.

It is an arithmetic number, because the mean of its divisors is an integer number (646410).

2^2542487 is an apocalyptic number.

2542487 is a deficient number, since it is larger than the sum of its proper divisors (43153).

2542487 is an equidigital number, since it uses as much as digits as its factorization.

2542487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43152.

The product of its digits is 17920, while the sum is 32.

The square root of 2542487 is about 1594.5177954479. The cubic root of 2542487 is about 136.4854157514.

The spelling of 2542487 in words is "two million, five hundred forty-two thousand, four hundred eighty-seven".