2557023 has 8 divisors (see below), whose sum is σ = 3896448. Its totient is φ = 1461144.

The previous prime is 2557013. The next prime is 2557063. The reversal of 2557023 is 3207552.

2557023 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 not a de Polignac number, because 2557023 - 2⁴ = 2557007 is a prime.

It is an Ulam number.

2557023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2556984 and 2557002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60861 + ... + 60902.

It is an arithmetic number, because the mean of its divisors is an integer number (487056).

2^2557023 is an apocalyptic number.

2557023 is a deficient number, since it is larger than the sum of its proper divisors (1339425).

2557023 is a wasteful number, since it uses less digits than its factorization.

2557023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121773.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 2557023 is about 1599.0694168797. The cubic root of 2557023 is about 136.7450280994.

The spelling of 2557023 in words is "two million, five hundred fifty-seven thousand, twenty-three".