2530771992 has 128 divisors (see below), whose sum is σ = 8198400000. Its totient is φ = 723056544.

The previous prime is 2530771979. The next prime is 2530771993. The reversal of 2530771992 is 2991770352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530771993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57009 + ... + 91167.

It is an arithmetic number, because the mean of its divisors is an integer number (64050000).

Almost surely, 2^2530771992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2530771992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4099200000).

2530771992 is an abundant number, since it is smaller than the sum of its proper divisors (5667628008).

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

2530771992 is a wasteful number, since it uses less digits than its factorization.

2530771992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34195 (or 34171 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 2530771992 is about 50306.7787877538. The cubic root of 2530771992 is about 1362.7546517488.

The spelling of 2530771992 in words is "two billion, five hundred thirty million, seven hundred seventy-one thousand, nine hundred ninety-two".