2531098920 has 192 divisors, whose sum is σ = 9049320000. Its totient is φ = 564372480.

The previous prime is 2531098901. The next prime is 2531098931. The reversal of 2531098920 is 298901352.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235831 + ... + 246329.

It is an arithmetic number, because the mean of its divisors is an integer number (47131875).

Almost surely, 2^2531098920 is an apocalyptic number.

2531098920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531098920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4524660000).

2531098920 is an abundant number, since it is smaller than the sum of its proper divisors (6518221080).

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

2531098920 is a wasteful number, since it uses less digits than its factorization.

2531098920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10568 (or 10557 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 2531098920 is about 50310.0280262295. The cubic root of 2531098920 is about 1362.8133299534.

The spelling of 2531098920 in words is "two billion, five hundred thirty-one million, ninety-eight thousand, nine hundred twenty".