2521542 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 775808.

The previous prime is 2521537. The next prime is 2521591. The reversal of 2521542 is 2451252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5809 + ... + 6227.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2521542 is an apocalyptic number.

2521542 is an abundant number, since it is smaller than the sum of its proper divisors (2921658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2521542 is a wasteful number, since it uses less digits than its factorization.

2521542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its digits is 800, while the sum is 21.

The square root of 2521542 is about 1587.9363967112. The cubic root of 2521542 is about 136.1095930353.

Adding to 2521542 its reverse (2451252), we get a palindrome (4972794).

The spelling of 2521542 in words is "two million, five hundred twenty-one thousand, five hundred forty-two".