2530561938 has 16 divisors (see below), whose sum is σ = 5061662400. Its totient is φ = 843430896.

The previous prime is 2530561933. The next prime is 2530561939. The reversal of 2530561938 is 8391650352.

It is a self number, because there is not a number n which added to its sum of digits gives 2530561938.

It is not an unprimeable number, because it can be changed into a prime (2530561931) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 64656 + ... + 96132.

It is an arithmetic number, because the mean of its divisors is an integer number (316353900).

Almost surely, 2^2530561938 is an apocalyptic number.

2530561938 is an abundant number, since it is smaller than the sum of its proper divisors (2531100462).

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

2530561938 is a wasteful number, since it uses less digits than its factorization.

2530561938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44881.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 2530561938 is about 50304.6910138607. The cubic root of 2530561938 is about 1362.7169478405.

The spelling of 2530561938 in words is "two billion, five hundred thirty million, five hundred sixty-one thousand, nine hundred thirty-eight".