2556502 has 8 divisors (see below), whose sum is σ = 4129776. Its totient is φ = 1179912.

The previous prime is 2556493. The next prime is 2556503. The reversal of 2556502 is 2056552.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49138 + ... + 49189.

It is an arithmetic number, because the mean of its divisors is an integer number (516222).

2^2556502 is an apocalyptic number.

2556502 is a deficient number, since it is larger than the sum of its proper divisors (1573274).

2556502 is a wasteful number, since it uses less digits than its factorization.

2556502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98342.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2556502 is about 1598.9065013315. The cubic root of 2556502 is about 136.7357400850.

The spelling of 2556502 in words is "two million, five hundred fifty-six thousand, five hundred two".