2557534 has 8 divisors (see below), whose sum is σ = 4384368. Its totient is φ = 1096080.

The previous prime is 2557519. The next prime is 2557553. The reversal of 2557534 is 4357552.

2557534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2557534² = 13081960322312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2557496 and 2557505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91327 + ... + 91354.

It is an arithmetic number, because the mean of its divisors is an integer number (548046).

2^2557534 is an apocalyptic number.

2557534 is a deficient number, since it is larger than the sum of its proper divisors (1826834).

2557534 is a wasteful number, since it uses less digits than its factorization.

2557534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182690.

The product of its digits is 21000, while the sum is 31.

The square root of 2557534 is about 1599.2291893284. The cubic root of 2557534 is about 136.7541366154.

The spelling of 2557534 in words is "two million, five hundred fifty-seven thousand, five hundred thirty-four".