2556037 has 4 divisors (see below), whose sum is σ = 2788416. Its totient is φ = 2323660.

The previous prime is 2556023. The next prime is 2556041. The reversal of 2556037 is 7306552.

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 2556037 - 2¹⁹ = 2031749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2555996 and 2556014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116173 + ... + 116194.

It is an arithmetic number, because the mean of its divisors is an integer number (697104).

2^2556037 is an apocalyptic number.

It is an amenable number.

2556037 is a deficient number, since it is larger than the sum of its proper divisors (232379).

2556037 is a wasteful number, since it uses less digits than its factorization.

2556037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232378.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 2556037 is about 1598.7610828388. The cubic root of 2556037 is about 136.7274493327.

The spelling of 2556037 in words is "two million, five hundred fifty-six thousand, thirty-seven".