2025188540 has 24 divisors (see below), whose sum is σ = 4260368112. Its totient is φ = 808652160.

The previous prime is 2025188531. The next prime is 2025188551. The reversal of 2025188540 is 458815202.

2025188540 = T₁₅ + T₁₆ + ... + T₂₂₉₈.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2025188540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77249 + ... + 100088.

It is an arithmetic number, because the mean of its divisors is an integer number (177515338).

Almost surely, 2^2025188540 is an apocalyptic number.

2025188540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2025188540 is an abundant number, since it is smaller than the sum of its proper divisors (2235179572).

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

2025188540 is a wasteful number, since it uses less digits than its factorization.

2025188540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177917 (or 177915 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 2025188540 is about 45002.0948401294. The cubic root of 2025188540 is about 1265.1882611279.

The spelling of 2025188540 in words is "two billion, twenty-five million, one hundred eighty-eight thousand, five hundred forty".