2542457 has 4 divisors (see below), whose sum is σ = 2574720. Its totient is φ = 2510196.

The previous prime is 2542453. The next prime is 2542471. The reversal of 2542457 is 7542452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542457 - 2² = 2542453 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542453) 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, 16013 + ... + 16170.

It is an arithmetic number, because the mean of its divisors is an integer number (643680).

2^2542457 is an apocalyptic number.

It is an amenable number.

2542457 is a deficient number, since it is larger than the sum of its proper divisors (32263).

2542457 is an equidigital number, since it uses as much as digits as its factorization.

2542457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32262.

The product of its digits is 11200, while the sum is 29.

The square root of 2542457 is about 1594.5083881874. The cubic root of 2542457 is about 136.4848789308.

The spelling of 2542457 in words is "two million, five hundred forty-two thousand, four hundred fifty-seven".