2531020 has 12 divisors (see below), whose sum is σ = 5315184. Its totient is φ = 1012400.

The previous prime is 2531017. The next prime is 2531027. The reversal of 2531020 is 201352.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2531027) 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, 63256 + ... + 63295.

It is an arithmetic number, because the mean of its divisors is an integer number (442932).

2^2531020 is an apocalyptic number.

2531020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531020 is an abundant number, since it is smaller than the sum of its proper divisors (2784164).

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

2531020 is a wasteful number, since it uses less digits than its factorization.

2531020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126560 (or 126558 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2531020 is about 1590.9179740012. The cubic root of 2531020 is about 136.2799165573.

Adding to 2531020 its reverse (201352), we get a palindrome (2732372).

The spelling of 2531020 in words is "two million, five hundred thirty-one thousand, twenty".