2533987 has 4 divisors (see below), whose sum is σ = 2537536. Its totient is φ = 2530440.

The previous prime is 2533967. The next prime is 2534009. The reversal of 2533987 is 7893352.

2533987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2533987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2533967) 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 3 ways as a sum of consecutive naturals, for example, 288 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (634384).

2^2533987 is an apocalyptic number.

2533987 is a deficient number, since it is larger than the sum of its proper divisors (3549).

2533987 is an equidigital number, since it uses as much as digits as its factorization.

2533987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548.

The product of its digits is 45360, while the sum is 37.

The square root of 2533987 is about 1591.8501813927. The cubic root of 2533987 is about 136.3331473519. Note that the first 3 decimals are identical.

It can be divided in two parts, 253398 and 7, that multiplied together give a triangular number (1773786 = T₁₈₈₃).

The spelling of 2533987 in words is "two million, five hundred thirty-three thousand, nine hundred eighty-seven".