2520047 has 4 divisors (see below), whose sum is σ = 2539416. Its totient is φ = 2500680.

The previous prime is 2520031. The next prime is 2520073. The reversal of 2520047 is 7400252.

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

It is a cyclic number.

It is not a de Polignac number, because 2520047 - 2⁴ = 2520031 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 (2520017) 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, 9488 + ... + 9749.

It is an arithmetic number, because the mean of its divisors is an integer number (634854).

2^2520047 is an apocalyptic number.

2520047 is a deficient number, since it is larger than the sum of its proper divisors (19369).

2520047 is a wasteful number, since it uses less digits than its factorization.

2520047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19368.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2520047 is about 1587.4655901783. The cubic root of 2520047 is about 136.0826883253.

Adding to 2520047 its reverse (7400252), we get a palindrome (9920299).

The spelling of 2520047 in words is "two million, five hundred twenty thousand, forty-seven".