2087525840 has 80 divisors (see below), whose sum is σ = 4989979728. Its totient is φ = 811819008.

The previous prime is 2087525837. The next prime is 2087525861. The reversal of 2087525840 is 485257802.

It can be written as a sum of positive squares in 8 ways, for example, as 18731584 + 2068794256 = 4328^2 + 45484^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 476942 + ... + 481298.

Almost surely, 2^2087525840 is an apocalyptic number.

2087525840 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 2087525840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2494989864).

2087525840 is an abundant number, since it is smaller than the sum of its proper divisors (2902453888).

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

2087525840 is a wasteful number, since it uses less digits than its factorization.

2087525840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 2087525840 is about 45689.4499857462. The cubic root of 2087525840 is about 1278.0385485730.

The spelling of 2087525840 in words is "two billion, eighty-seven million, five hundred twenty-five thousand, eight hundred forty".