2520542 has 8 divisors (see below), whose sum is σ = 3796632. Its totient is φ = 1255000.

The previous prime is 2520503. The next prime is 2520577. The reversal of 2520542 is 2450252.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009 + ... + 3012.

It is an arithmetic number, because the mean of its divisors is an integer number (474579).

2^2520542 is an apocalyptic number.

2520542 is a deficient number, since it is larger than the sum of its proper divisors (1276090).

2520542 is a wasteful number, since it uses less digits than its factorization.

2520542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2520542 is about 1587.6214914141. The cubic root of 2520542 is about 136.0915977518.

Adding to 2520542 its reverse (2450252), we get a palindrome (4970794).

The spelling of 2520542 in words is "two million, five hundred twenty thousand, five hundred forty-two".