2102500530 has 64 divisors (see below), whose sum is σ = 6037960320. Its totient is φ = 517537728.

The previous prime is 2102500501. The next prime is 2102500531. The reversal of 2102500530 is 350052012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2102500531) 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 31 ways as a sum of consecutive naturals, for example, 295992 + ... + 303011.

It is an arithmetic number, because the mean of its divisors is an integer number (94343130).

Almost surely, 2^2102500530 is an apocalyptic number.

2102500530 is an abundant number, since it is smaller than the sum of its proper divisors (3935459790).

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

2102500530 is a wasteful number, since it uses less digits than its factorization.

2102500530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599032 (or 599026 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2102500530 is about 45853.0318517762. The cubic root of 2102500530 is about 1281.0872374486.

Adding to 2102500530 its reverse (350052012), we get a palindrome (2452552542).

The spelling of 2102500530 in words is "two billion, one hundred two million, five hundred thousand, five hundred thirty".