2531125828 has 48 divisors (see below), whose sum is σ = 5527525248. Its totient is φ = 985248000.

The previous prime is 2531125769. The next prime is 2531125841. The reversal of 2531125828 is 8285211352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403758 + ... + 409978.

It is an arithmetic number, because the mean of its divisors is an integer number (115156776).

Almost surely, 2^2531125828 is an apocalyptic number.

2531125828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2531125828 is an abundant number, since it is smaller than the sum of its proper divisors (2996399420).

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

2531125828 is a wasteful number, since it uses less digits than its factorization.

2531125828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7564 (or 7562 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 2531125828 is about 50310.2954473535. The cubic root of 2531125828 is about 1362.8181592722.

The spelling of 2531125828 in words is "two billion, five hundred thirty-one million, one hundred twenty-five thousand, eight hundred twenty-eight".