2506733 has 4 divisors (see below), whose sum is σ = 2549280. Its totient is φ = 2464188.

The previous prime is 2506729. The next prime is 2506759. The reversal of 2506733 is 3376052.

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 2506733 - 2² = 2506729 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506723) 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, 21185 + ... + 21302.

It is an arithmetic number, because the mean of its divisors is an integer number (637320).

2^2506733 is an apocalyptic number.

It is an amenable number.

2506733 is a deficient number, since it is larger than the sum of its proper divisors (42547).

2506733 is an equidigital number, since it uses as much as digits as its factorization.

2506733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42546.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 2506733 is about 1583.2665599955. The cubic root of 2506733 is about 135.8426127710.

The spelling of 2506733 in words is "two million, five hundred six thousand, seven hundred thirty-three".